how to write a thesis for an annotated bibliography

Annotated Bibliographies

What this handout is about.

This handout will explain why annotated bibliographies are useful for researchers, provide an explanation of what constitutes an annotation, describe various types of annotations and styles for writing them, and offer multiple examples of annotated bibliographies in the MLA, APA, and CBE/CSE styles of citation.

Introduction

Welcome to the wonderful world of annotated bibliographies! You’re probably already familiar with the need to provide bibliographies, reference pages, and works cited lists to credit your sources when you do a research paper. An annotated bibliography includes descriptions and explanations of your listed sources beyond the basic citation information you usually provide.

Why do an annotated bibliography?

One of the reasons behind citing sources and compiling a general bibliography is so that you can prove you have done some valid research to back up your argument and claims. Readers can refer to a citation in your bibliography and then go look up the material themselves. When inspired by your text or your argument, interested researchers can access your resources. They may wish to double check a claim or interpretation you’ve made, or they may simply wish to continue researching according to their interests. But think about it: even though a bibliography provides a list of research sources of all types that includes publishing information, how much does that really tell a researcher or reader about the sources themselves?

An annotated bibliography provides specific information about each source you have used. As a researcher, you have become an expert on your topic: you have the ability to explain the content of your sources, assess their usefulness, and share this information with others who may be less familiar with them. Think of your paper as part of a conversation with people interested in the same things you are; the annotated bibliography allows you to tell readers what to check out, what might be worth checking out in some situations, and what might not be worth spending the time on. It’s kind of like providing a list of good movies for your classmates to watch and then going over the list with them, telling them why this movie is better than that one or why one student in your class might like a particular movie better than another student would. You want to give your audience enough information to understand basically what the movies are about and to make an informed decision about where to spend their money based on their interests.

What does an annotated bibliography do?

A good annotated bibliography:

• encourages you to think critically about the content of the works you are using, their place within a field of study, and their relation to your own research and ideas.
• proves you have read and understand your sources.
• establishes your work as a valid source and you as a competent researcher.
• situates your study and topic in a continuing professional conversation.
• provides a way for others to decide whether a source will be helpful to their research if they read it.
• could help interested researchers determine whether they are interested in a topic by providing background information and an idea of the kind of work going on in a field.

What elements might an annotation include?

• Bibliography according to the appropriate citation style (MLA, APA, CBE/CSE, etc.).
• Explanation of main points and/or purpose of the work—basically, its thesis—which shows among other things that you have read and thoroughly understand the source.
• Verification or critique of the authority or qualifications of the author.
• Comments on the worth, effectiveness, and usefulness of the work in terms of both the topic being researched and/or your own research project.
• The point of view or perspective from which the work was written. For instance, you may note whether the author seemed to have particular biases or was trying to reach a particular audience.
• Relevant links to other work done in the area, like related sources, possibly including a comparison with some of those already on your list. You may want to establish connections to other aspects of the same argument or opposing views.

The first four elements above are usually a necessary part of the annotated bibliography. Points 5 and 6 may involve a little more analysis of the source, but you may include them in other kinds of annotations besides evaluative ones. Depending on the type of annotation you use, which this handout will address in the next section, there may be additional kinds of information that you will need to include.

For more extensive research papers (probably ten pages or more), you often see resource materials grouped into sub-headed sections based on content, but this probably will not be necessary for the kinds of assignments you’ll be working on. For longer papers, ask your instructor about their preferences concerning annotated bibliographies.

Did you know that annotations have categories and styles?

Decisions, decisions.

As you go through this handout, you’ll see that, before you start, you’ll need to make several decisions about your annotations: citation format, type of annotation, and writing style for the annotation.

First of all, you’ll need to decide which kind of citation format is appropriate to the paper and its sources, for instance, MLA or APA. This may influence the format of the annotations and bibliography. Typically, bibliographies should be double-spaced and use normal margins (you may want to check with your instructor, since they may have a different style they want you to follow).

MLA (Modern Language Association)

See the UNC Libraries citation tutorial for basic MLA bibliography formatting and rules.

• MLA documentation is generally used for disciplines in the humanities, such as English, languages, film, and cultural studies or other theoretical studies. These annotations are often summary or analytical annotations.
• Title your annotated bibliography “Annotated Bibliography” or “Annotated List of Works Cited.”
• Following MLA format, use a hanging indent for your bibliographic information. This means the first line is not indented and all the other lines are indented four spaces (you may ask your instructor if it’s okay to tab over instead of using four spaces).
• Begin your annotation immediately after the bibliographic information of the source ends; don’t skip a line down unless you have been told to do so by your instructor.

APA (American Psychological Association)

See the UNC Libraries citation tutorial for basic APA bibliography formatting and rules.

• Natural and social sciences, such as psychology, nursing, sociology, and social work, use APA documentation. It is also used in economics, business, and criminology. These annotations are often succinct summaries.
• Annotated bibliographies for APA format do not require a special title. Use the usual “References” designation.
• Like MLA, APA uses a hanging indent: the first line is set flush with the left margin, and all other lines are indented four spaces (you may ask your instructor if it’s okay to tab over instead of using four spaces).
• After the bibliographic citation, drop down to the next line to begin the annotation, but don’t skip an extra line.
• The entire annotation is indented an additional two spaces, so that means each of its lines will be six spaces from the margin (if your instructor has said that it’s okay to tab over instead of using the four spaces rule, indent the annotation two more spaces in from that point).

CBE (Council of Biology Editors)/CSE (Council of Science Editors)

See the UNC Libraries citation tutorial for basic CBE/CSE bibliography formatting and rules.

• CBE/CSE documentation is used by the plant sciences, zoology, microbiology, and many of the medical sciences.
• Annotated bibliographies for CBE/CSE format do not require a special title. Use the usual “References,” “Cited References,” or “Literature Cited,” and set it flush with the left margin.
• Bibliographies for CSE in general are in a slightly smaller font than the rest of the paper.
• When using the name-year system, as in MLA and APA, the first line of each entry is set flush with the left margin, and all subsequent lines, including the annotation, are indented three or four spaces.
• When using the citation-sequence method, each entry begins two spaces after the number, and every line, including the annotation, will be indented to match the beginning of the entry, or may be slightly further indented, as in the case of journals.
• After the bibliographic citation, drop down to the next line to begin the annotation, but don’t skip an extra line. The entire annotation follows the indentation of the bibliographic entry, whether it’s N-Y or C-S format.
• Annotations in CBE/CSE are generally a smaller font size than the rest of the bibliographic information.

After choosing a documentation format, you’ll choose from a variety of annotation categories presented in the following section. Each type of annotation highlights a particular approach to presenting a source to a reader. For instance, an annotation could provide a summary of the source only, or it could also provide some additional evaluation of that material.

In addition to making choices related to the content of the annotation, you’ll also need to choose a style of writing—for instance, telescopic versus paragraph form. Your writing style isn’t dictated by the content of your annotation. Writing style simply refers to the way you’ve chosen to convey written information. A discussion of writing style follows the section on annotation types.

Types of annotations

As you now know, one annotation does not fit all purposes! There are different kinds of annotations, depending on what might be most important for your reader to learn about a source. Your assignments will usually make it clear which citation format you need to use, but they may not always specify which type of annotation to employ. In that case, you’ll either need to pick your instructor’s brain a little to see what they want or use clue words from the assignment itself to make a decision. For instance, the assignment may tell you that your annotative bibliography should give evidence proving an analytical understanding of the sources you’ve used. The word analytical clues you in to the idea that you must evaluate the sources you’re working with and provide some kind of critique.

Summary annotations

There are two kinds of summarizing annotations, informative and indicative.

Summarizing annotations in general have a couple of defining features:

• They sum up the content of the source, as a book report might.
• They give an overview of the arguments and proofs/evidence addressed in the work and note the resulting conclusion.
• They do not judge the work they are discussing. Leave that to the critical/evaluative annotations.
• When appropriate, they describe the author’s methodology or approach to material. For instance, you might mention if the source is an ethnography or if the author employs a particular kind of theory.

Informative annotation

Informative annotations sometimes read like straight summaries of the source material, but they often spend a little more time summarizing relevant information about the author or the work itself.

Indicative annotation

Indicative annotation is the second type of summary annotation, but it does not attempt to include actual information from the argument itself. Instead, it gives general information about what kinds of questions or issues are addressed by the work. This sometimes includes the use of chapter titles.

Critical/evaluative

Evaluative annotations don’t just summarize. In addition to tackling the points addressed in summary annotations, evaluative annotations:

• evaluate the source or author critically (biases, lack of evidence, objective, etc.).
• show how the work may or may not be useful for a particular field of study or audience.
• explain how researching this material assisted your own project.

Combination

An annotated bibliography may combine elements of all the types. In fact, most of them fall into this category: a little summarizing and describing, a little evaluation.

Writing style

Ok, next! So what does it mean to use different writing styles as opposed to different kinds of content? Content is what belongs in the annotation, and style is the way you write it up. First, choose which content type you need to compose, and then choose the style you’re going to use to write it

This kind of annotated bibliography is a study in succinctness. It uses a minimalist treatment of both information and sentence structure, without sacrificing clarity. Warning: this kind of writing can be harder than you might think.

Don’t skimp on this kind of annotated bibliography. If your instructor has asked for paragraph form, it likely means that you’ll need to include several elements in the annotation, or that they expect a more in-depth description or evaluation, for instance. Make sure to provide a full paragraph of discussion for each work.

As you can see now, bibliographies and annotations are really a series of organized steps. They require meticulous attention, but in the end, you’ve got an entire testimony to all the research and work you’ve done. At the end of this handout you’ll find examples of informative, indicative, evaluative, combination, telescopic, and paragraph annotated bibliography entries in MLA, APA, and CBE formats. Use these examples as your guide to creating an annotated bibliography that makes you look like the expert you are!

MLA Example

APA Example

CBE Example

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

American Psychological Association. 2010. Publication Manual of the American Psychological Association . 6th ed. Washington, DC: American Psychological Association.

Bell, I. F., and J. Gallup. 1971. A Reference Guide to English, American, and Canadian Literature . Vancouver: University of British Columbia Press.

Bizzell, Patricia, and Bruce Herzburg. 1991. Bedford Bibliography for Teachers of Writing , 3rd ed. Boston: Bedford Books.

Center for Information on Language Teaching, and The English Teaching Information Center of the British Council. 1968. Language-Teaching Bibliography . Cambridge: Cambridge University.

Engle, Michael, Amy Blumenthal, and Tony Cosgrave. 2012. “How to Prepare an Annotated Bibliography.” Olin & Uris Libraries. Cornell University. Last updated September 25, 2012. https://olinuris.library.cornell.edu/content/how-prepare-annotated-bibliography.

Gibaldi, Joseph. 2009. MLA Handbook for Writers of Research Papers , 7th ed. New York: The Modern Language Association of America.

Huth, Edward. 1994. Scientific Style and Format: The CBE Manual for Authors, Editors, and Publishers . New York: University of Cambridge.

Kilborn, Judith. 2004. “MLA Documentation.” LEO: Literacy Education Online. Last updated March 16, 2004. https://leo.stcloudstate.edu/research/mla.html.

Spatt, Brenda. 1991. Writing from Sources , 3rd ed. New York: St. Martin’s.

University of Kansas. 2018. “Bibliographies.” KU Writing Center. Last updated April 2018. http://writing.ku.edu/bibliographies .

University of Wisconsin-Madison. 2019. “Annotated Bibliography.” The Writing Center. Accessed June 14, 2019. https://writing.wisc.edu/handbook/assignments/annotatedbibliography/ .

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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Annotated Bibliographies

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Definitions

A bibliography is a list of sources (books, journals, Web sites, periodicals, etc.) one has used for researching a topic. Bibliographies are sometimes called "References" or "Works Cited" depending on the style format you are using. A bibliography usually just includes the bibliographic information (i.e., the author, title, publisher, etc.).

An annotation is a summary and/or evaluation. Therefore, an annotated bibliography includes a summary and/or evaluation of each of the sources. Depending on your project or the assignment, your annotations may do one or more of the following.

For more help, see our handout on paraphrasing sources.

For more help, see our handouts on evaluating resources .

• Reflect : Once you've summarized and assessed a source, you need to ask how it fits into your research. Was this source helpful to you? How does it help you shape your argument? How can you use this source in your research project? Has it changed how you think about your topic?

Your annotated bibliography may include some of these, all of these, or even others. If you're doing this for a class, you should get specific guidelines from your instructor.

Why should I write an annotated bibliography?

To learn about your topic : Writing an annotated bibliography is excellent preparation for a research project. Just collecting sources for a bibliography is useful, but when you have to write annotations for each source, you're forced to read each source more carefully. You begin to read more critically instead of just collecting information. At the professional level, annotated bibliographies allow you to see what has been done in the literature and where your own research or scholarship can fit. To help you formulate a thesis: Every good research paper is an argument. The purpose of research is to state and support a thesis. So, a very important part of research is developing a thesis that is debatable, interesting, and current. Writing an annotated bibliography can help you gain a good perspective on what is being said about your topic. By reading and responding to a variety of sources on a topic, you'll start to see what the issues are, what people are arguing about, and you'll then be able to develop your own point of view.

To help other researchers : Extensive and scholarly annotated bibliographies are sometimes published. They provide a comprehensive overview of everything important that has been and is being said about that topic. You may not ever get your annotated bibliography published, but as a researcher, you might want to look for one that has been published about your topic.

The format of an annotated bibliography can vary, so if you're doing one for a class, it's important to ask for specific guidelines.

The bibliographic information : Generally, though, the bibliographic information of the source (the title, author, publisher, date, etc.) is written in either MLA or APA format. For more help with formatting, see our MLA handout . For APA, go here: APA handout .

The annotations: The annotations for each source are written in paragraph form. The lengths of the annotations can vary significantly from a couple of sentences to a couple of pages. The length will depend on the purpose. If you're just writing summaries of your sources, the annotations may not be very long. However, if you are writing an extensive analysis of each source, you'll need more space.

You can focus your annotations for your own needs. A few sentences of general summary followed by several sentences of how you can fit the work into your larger paper or project can serve you well when you go to draft.

Writing an Annotated Bibliography

Learn how to write and format an annotated bibliography in APA Style (7th ed.).

Conducting research and documenting your findings is an essential part of the academic writing process. There are times when you will need (or be required) to conduct initial research prior to deciding on a thesis or focus for your writing. An annotated bibliography is a helpful tool to help you track and assess your sources.

Similar to formatting a paper, an annotated bibliography is formatted with double spacing and has a title page. An annotated bibliography does not typically include a list of references, since the annotated bibliography itself is a list of references, only each entry also provides information about the source.

Components of an Annotated Bibliography

An annotated bibliography includes a reference entry and a short annotation (paragraph) for each source. How annotations are written depends on the purpose of the research. There are two main components for each source included in an annotated bibliography:

• Bibliographic Information : This includes the same information you would provide in a reference list, formatted according to a reference entry for the particular type of source it is.
• Annotation : This is a short paragraph about the source that oftentimes summarizes the source and evaluates the usefulness of the source for your research paper or project, but what you include in the paragraph will largely depend on your particular assignment requirements.

Purposes of Writing an Annotated Bibliography

Writing an annotated bibliography is an effective way to document the research process and better prepare for a first draft. By requiring an annotated bibliography, your professor is setting you up for success. Some of the purposes and benefits of writing an annotated bibliography include the following:

• Formulate a thesis : Conducting research is a prewriting activity that can help narrow the focus of a topic that you are researching. Writing annotations for each source can help you understand the breadth and depth of a subject and determine your focus.
• Review the literature : An annotated bibliography can help you analyze the available literature on a subject. This is especially helpful for relatively new or persuasive topics where it is important to read about multiple sides of an issue.
• Illustrate the direction of your research : An employer or professor may want a preview of your research prior to the final draft of your paper. An annotated bibliography is a way to show your current research and its usefulness.
• Help other researchers : When other researchers find your paper particularly engaging, they often will examine your reference entries. However, an annotated bibliography provides more information about a source, such as a summary, which allows researchers to make an informed decision about whether to locate that source. With a references list, the reader has to guess whether a source will be useful and relevant.

Ways to Annotate Sources

There are several ways to write annotations depending on the purpose or the requirements of the assignment or research. Common approaches to writing annotations include the following:

• Summarize the source : Summarizing the source means to state briefly the main ideas of the source in relation to the current research. For instance, a medical book may have multiple chapters, but the only part to summarize for this source is the information that pertains to the research for the current paper’s topic. Please note: A summary must be written in your own words.
• Evaluate the source : To evaluate a source means you determine the strengths and weaknesses of the piece in relation to a particular research topic. When evaluating a source, the reliability and validity of the source are also determined. Reliability refers to the source’s credibility. Is it biased? Is the article from a website that is also selling a product related to the subject of the article? Is there a hidden agenda in the source? Validity indicates the accuracy or correctness of the information. Is the information gathered from experts? Is it just the opinion of the author? Is the author an authority on the topic at hand? What are their professional or academic credentials?
• Reflect on the usefulness of the source : How does this source fit in with the current research project? Is this a source you can use in your paper? Does it help define a problem or present an argument that would add depth and detail to your research? Is it better suited as a starting point to find other sources (i.e., is it useful only for background information)?
• Combination : Any combination of the above approaches to writing an annotation may be required. You may choose to write a separate short paragraph for each approach, or combine them into one annotation. As always, it is essential that you are careful to restate things in your own words to avoid plagiarizing an authors’ original words or ideas.

Sample Annotated Bibliography

Note. When formatting an Annotated Bibliography on a Word document, the bibliographic references have hanging indents .

Baker, B. (2003, November 27). Version control helps keep rework to a minimum. *EDN, 48*(26), 227-232. https://doi.org/10.9999/1.111111

This is a short article geared mostly toward digital developers who either are programming more than 10,000 lines of code or are programming within teams. It also emphasizes the importance of a VCS, but more so in the development environment. For this project, the only thing I might use this for is the simple statement that while a VCS is great for any work environment, without the discipline to use it regularly, they are worthless.

Huber, T. (2005, May). *JEDI version control system*. SourceForge. https://jedivcs.sourceforge.net

This site includes detailed instructions for operating an open source VCS. It is written for a technical audience that must have some background on this particular system. What is interesting about this site is the idea of open source. Maybe there are other version control systems available via the Internet through shareware sites. This particular site will probably not be used in writing the final project, but it is a source that can lead to further research on this idea of freeware for a VCS.

McVittie, L. (2007). Version control, with integrity. *Network Computing, 12*(21), 34-45. https://doi.org/10.9999/2.222222

This is an informative article with an overview of the details inside a VCS—branching, configuration, repository, access management, and more. What makes this article valuable though is the overview of several version control systems on the market (at least in 2001). After reading through the overview of several products, if one fits what my company is looking for, I can begin searching for that product and further information on the Internet. This article may or may not be used in the actual writing of the final proposal, but it will be useful information for further research on the project.

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How to Prepare an Annotated Bibliography: The Annotated Bibliography

• The Annotated Bibliography
• Fair Use of this Guide

Explanation, Process, Directions, and Examples

What is an annotated bibliography.

An annotated bibliography is a list of citations to books, articles, and documents. Each citation is followed by a brief (usually about 150 words) descriptive and evaluative paragraph, the annotation. The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited.

Annotations vs. Abstracts

Abstracts are the purely descriptive summaries often found at the beginning of scholarly journal articles or in periodical indexes. Annotations are descriptive and critical; they may describe the author's point of view, authority, or clarity and appropriateness of expression.

The Process

Creating an annotated bibliography calls for the application of a variety of intellectual skills: concise exposition, succinct analysis, and informed library research.

First, locate and record citations to books, periodicals, and documents that may contain useful information and ideas on your topic. Briefly examine and review the actual items. Then choose those works that provide a variety of perspectives on your topic.

Cite the book, article, or document using the appropriate style.

Write a concise annotation that summarizes the central theme and scope of the book or article. Include one or more sentences that (a) evaluate the authority or background of the author, (b) comment on the intended audience, (c) compare or contrast this work with another you have cited, or (d) explain how this work illuminates your bibliography topic.

Critically Appraising the Book, Article, or Document

For guidance in critically appraising and analyzing the sources for your bibliography, see How to Critically Analyze Information Sources . For information on the author's background and views, ask at the reference desk for help finding appropriate biographical reference materials and book review sources.

Choosing the Correct Citation Style

Check with your instructor to find out which style is preferred for your class. Online citation guides for both the Modern Language Association (MLA) and the American Psychological Association (APA) styles are linked from the Library's Citation Management page .

Sample Annotated Bibliography Entries

The following example uses APA style ( Publication Manual of the American Psychological Association , 7th edition, 2019) for the journal citation:

Waite, L., Goldschneider, F., & Witsberger, C. (1986). Nonfamily living and the erosion of traditional family orientations among young adults. American Sociological Review, 51 (4), 541-554. The authors, researchers at the Rand Corporation and Brown University, use data from the National Longitudinal Surveys of Young Women and Young Men to test their hypothesis that nonfamily living by young adults alters their attitudes, values, plans, and expectations, moving them away from their belief in traditional sex roles. They find their hypothesis strongly supported in young females, while the effects were fewer in studies of young males. Increasing the time away from parents before marrying increased individualism, self-sufficiency, and changes in attitudes about families. In contrast, an earlier study by Williams cited below shows no significant gender differences in sex role attitudes as a result of nonfamily living.

This example uses MLA style ( MLA Handbook , 9th edition, 2021) for the journal citation. For additional annotation guidance from MLA, see 5.132: Annotated Bibliographies .

Waite, Linda J., et al. "Nonfamily Living and the Erosion of Traditional Family Orientations Among Young Adults." American Sociological Review, vol. 51, no. 4, 1986, pp. 541-554. The authors, researchers at the Rand Corporation and Brown University, use data from the National Longitudinal Surveys of Young Women and Young Men to test their hypothesis that nonfamily living by young adults alters their attitudes, values, plans, and expectations, moving them away from their belief in traditional sex roles. They find their hypothesis strongly supported in young females, while the effects were fewer in studies of young males. Increasing the time away from parents before marrying increased individualism, self-sufficiency, and changes in attitudes about families. In contrast, an earlier study by Williams cited below shows no significant gender differences in sex role attitudes as a result of nonfamily living.

Versión española

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VII. Researched Writing

7.7 Writing an Annotated Bibliography

Emilie Zickel; Melanie Gagich; and Terri Pantuso

As you are gathering sources in your research, you will want to keep track of which information comes from what source. While other strategies have been discussed such as note taking, some researchers use an annotated bibliography for long term reference purposes. As the name implies, an annotated bibliography is the bibliographical reference of a given source along with key information from that source that you may use for future reference. As assignment parameters will vary by instructor, generally speaking the annotations are 150-200 words in length per source and do not include quoted material. The purpose of the annotations is to summarize the material within the context of your thesis statement.

Annotated Bibliographies follow a common structure and format. Below is an explanation of the elements and format of an annotated bibliography.

Components of an Annotated Bibliography

An annotation often offers a summary of a source that you intend to use for a research project as well as some assessment of the source’s relevance to your project or quality and credibility. There are two key components for each source: the citation and the annotation.

The Annotated Bibliography Samples page [1]  on the Purdue OWL offers examples of general formatting guidelines for both an MLA and an APA Annotated Bibliography.

You will provide the full bibliographic reference for the source: author, title, source title, and other required information depending on the type of source. This will be formatted just as it would be in a typical Works Cited for an MLA paper or a References page for an APA paper.

Tone and Style

Some elements can vary depending on the style you are using (e.g., APA or MLA). Be sure to review your style guide along with your assignment sheet. Generally speaking, use the following as a guide:

• Use signal phrases to refer to the author(s).
• Always maintain a neutral tone and use the third-person point of view and correct tense according to style guide (present tense for MLA, past tense for APA) (i.e., Tompkins asserts… ).
• Keep the focus of the summary on the text, not on what you think of it, and try to put as most of the summary as you can in your own words. If you must use exact phrases from the source that you are summarizing, you must quote and cite them.
• Annotations should not be a replication of the abstract provided by the source.

What to Include in Annotations

• After the bibliographical information, begin to discuss the source. Begin with a general summary of the source. Describe the key sections of the text and their corresponding main points. Try to avoid focusing on details; a summary covers the essential points and typically does not include quoted material.
• Evaluate the source’s credibility or relevance. Is the author an expert on the topic? How do you know? Is the source peer-reviewed or otherwise credible in nature? How do you know? What makes this source a good one to use?
• Discuss how you plan to integrate the source in your paper. Do you need to point out similarities or differences with other sources in the annotated bibliography? How does it support (or refute) your intended thesis?

Review your Annotated Bibliography assignment sheet for additional content requirements . Instructors often require more than a simple summary of each source, and specific requirements may vary. Any (or all) of these aspects may be required in an annotated bibliography, depending on how or if your instructor has designed this assignment as part of a larger research project.

This section contains material from:

Gagich, Melanie, and Emilie Zickel. “Keeping Track of Your Sources and Writing an Annotated Bibliography.” In A Guide to Rhetoric, Genre, and Success in First-Year Writing . Cleveland: MSL Academic Endeavors. Accessed July 2019. https://pressbooks.ulib.csuohio.edu/csu-fyw-rhetoric/chapter/annotated-bibliography/ . Licensed under a Creative Commons Attribution 4.0 International License . Archival link: https://web.archive.org/web/20201027005500/https://pressbooks.ulib.csuohio.edu/csu-fyw-rhetoric/chapter/annotated-bibliography/

OER credited in the text above includes:

Jeffrey, Robin. About Writing: A Guide . Portland, OR: Open Oregon Educational Resources. Accessed December 18, 2020. https://openoregon.pressbooks.pub/aboutwriting/ . Licensed under a Creative Commons Attribution 4.0 International License . Archival link: https://web.archive.org/web/20230711210756/https://openoregon.pressbooks.pub/aboutwriting/

• "Annotated Bibliography Samples," Purdue Online Writing Lab, accessed December 20, 2021, https://owl.purdue.edu/owl/general_writing/common_writing_assignments/annotated_bibliographies/annotated_bibliography_samples.html . ↵

A statement, usually one sentence, that summarizes an argument that will later be explained, expanded upon, and developed in a longer essay or research paper. In undergraduate writing, a thesis statement is often found in the introductory paragraph of an essay. The plural of thesis is theses .

7.7 Writing an Annotated Bibliography Copyright © 2023 by Emilie Zickel; Melanie Gagich; and Terri Pantuso is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

How to Write an Annotated Bibliography - MLA Style

What is an annotation, how is an annotation different from an abstract, what is an annotated bibliography, types of annotated bibliographies, descriptive or informative, analytical or critical, to get started.

An annotation is more than just a brief summary of an article, book, website, or other type of publication. An annotation should give enough information to make a reader decide whether to read the complete work. In other words, if the reader were exploring the same topic as you, is this material useful and if so, why?

While an abstract also summarizes an article, book, website, or other type of publication, it is purely descriptive. Although annotations can be descriptive, they also include distinctive features about an item. Annotations can be evaluative and critical and the two major types of annotations included here demonstrate the difference.

An annotated bibliography is an organized list of sources (like a reference list). It differs from a straightforward bibliography in that each reference is followed by a paragraph length annotation, usually 100–200 words in length.

Depending on the assignment, an annotated bibliography might have different purposes:

• Provide a literature review on a particular subject
• Help to formulate a thesis on a subject
• Demonstrate the research you have performed on a particular subject
• Provide examples of major sources of information available on a topic
• Describe items that other researchers may find of interest on a topic

There are two major types of annotated bibliographies:

A descriptive or informative annotated bibliography describes or summarizes a source as does an abstract; it describes why the source is useful for researching a particular topic or question and its distinctive features. In addition, it describes the author's main arguments and conclusions without evaluating what the author says or concludes.

For example:

Gabbin, Joanne V. "Maya Angelou--The Peoples' Poet Laureate: An Introduction."  Langston Hughes Review , vol. 19, Spring 2005, pp. 3-6.  LION: Literature Online , gateway.proquest.com/openurl?ctx_ver=Z39.88-2003&xri:pqil:res_ver=0.2&res_id=xri:lion&rft_id=xri:lion:ft:criticism:R04012678:0&rft.accountid=14580. This scholarly article is a critical introduction to the works of Maya Angelou, and the criteria surrounding her success as a poet laureate. The author points out Angelou's literary influences, which include William Shakespeare, Edgar Allan Poe, Douglas Johnson, Langston Hughes, among others. This article also points out that her poetry lacks cultural boundaries, yet her trademark lies in the secular chants, songs, and games of the black vernacular tradition. The author discusses dialect and vernacular rhythms in several of Angelou's poems, and compares several of her works to the racy dialect of Sterling Brown and Langston Hughes. Also discussed is her political cultural voice and her deep understanding of emotion. This article is distinctive in its discussion of the need for a poet laureate to add to an audience's collective memory.

Please pay attention to the last sentence. While it points out distinctive features about the item it does not analyze the author's conclusions.

An analytical or critical annotation not only summarizes the material, it analyzes what is being said. It examines the strengths and weaknesses of what is presented as well as describing the applicability of the author's conclusions to the research being conducted.

Analytical or critical annotations will most likely be required when writing for a college-level course.

Gabbin, Joanne V. "Maya Angelou--The Peoples' Poet Laureate: An Introduction."  Langston Hughes Review , vol. 19, Spring 2005, pp. 3-6.  LION: Literature Online , gateway.proquest.com/openurl?ctx_ver=Z39.88-2003&xri:pqil:res_ver=0.2&res_id=xri:lion&rft_id=xri:lion:ft:criticism:R04012678:0&rft.accountid=14580. This scholarly article is a critical introduction to the works of Maya Angelou, and the criteria surrounding her success as a poet laureate. The author points out Angelou's literary influences, that include William Shakespeare, Edgar Allan Poe, Douglas Johnson, Langston Hughes, among others. This article also points out that her poetry lacks cultural boundaries, yet her trademark lies in the secular chants, songs, and games of the black vernacular tradition. The author discusses dialect and vernacular rhythms in several of Angelou's poems, and compares several of her works to the racy dialect of Sterling Brown and Langston Hughes. Also discussed is her political cultural voice and her deep understanding of emotion. This article is a good resource for those wanting to explore criteria related to the achievement of the award of poet laureate and how Angelou meets the criteria. This article begins to explore the poet's works and suggests her ability to add to an audience's collective memory. The author is a professor of English at James Madison University and has authored a book on Sterling Brown and numerous critical essays.

Please pay attention to the last three sentences. They give information about the author and critique the author's research.

To write an annotated bibliography here are the steps:

• Choose your sources -  Before writing your annotated bibliography, you must choose your sources. This involves doing research much like for any other project. Locate records to materials that may apply to your topic.
• Review the items -  Then review the actual items and choose those that provide a wide variety of perspectives on your topic. Article abstracts are helpful in this process.
• The purpose of the work
• A summary of its content
• Information about the author(s)
• For what type of audience the work is written
• Its relevance to the topic
• Any special or unique features about the material
• Research methodology
• The strengths, weaknesses or biases in the material

Annotated bibliographies are arranged alphabetically by the first author's last name.

Please see the  MLA Examples Page  for more information on citing in MLA style.

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Annotations

What is an annotation.

An annotation is a short (100-300 words) summary or critical evaluation of a source. Annotations can help you learn about your topic, develop a thesis statement, decide if a source will be useful for your assignment, and determine if there is enough valid information available to complete your project.

What is an annotated bibliography?

An annotated bibliography is a list of citations for various books, articles, and other sources. The annotated bibliography looks like a Works Cited page but it also includes an annotation after each source cited. Annotated bibliographies are a great research tool. 

What Goes Into an Annotation?

Most annotations both summarize and evaluate. Be sure to check with your professors to know what they want in annotations. 

A summary describes the source by answering who wrote the document and their overall argument. You don't need to include every part of the argument; just the parts that are most relevant to your topic.

An evaluation  critically assesses the work for accuracy, relevance, and quality. Check for any biases, holes, or particular strengths. Try out this Quick-How-To about  Evaluating Sources  for detailed guidance on assessing a source.

Tip:  Annotations are original descriptions that you create after reading the document. You may find a short summary, often titled "abstract," at the beginning of journal articles. Do not copy the abstract as that would be plagiarism.

Writing an Annotation

Cite the source using MLA style.

Describe the main ideas, arguments, themes, theses, or methodology, and identify the intended audience.

Explain the author’s expertise, point of view, and any bias he/she may have.

Compare to other sources on the same topic that you have also cited to show similarities and differences.

Explain why each source is useful for your research topic and how it relates to your topic.

Evaluate the strengths and weaknesses of each source.

Identify the observations or conclusions of the author. 

Tips on Writing and Formatting

Each annotation should be one or two paragraphs and between three to six sentences long (about 100- 300 words total).

All lines should be double-spaced (unless your professor has noted a different format).

Do not add an extra line between the citations.

Try to be objective, and give explanations if you state any opinions.

Use the third person (e.g., he, she, the author) instead of the first person (e.g., I, my, me), unless discussing your own research.

Sample Annotation

London, Herbert. “Five Myths of the Television Age.” Television Quarterly , vol. 10, no. 1, Mar. 1982, pp. 81-89.

Herbert London, the Dean of Journalism at New York University and author of several books and articles, explains how television contradicts five commonly believed ideas. He uses specific examples of events seen on television, such as the assassination of John Kennedy, to illustrate his points. His examples have been selected to contradict such truisms as: “seeing is believing”; “a picture is worth a thousand words”; and “satisfaction is its own reward.” London uses logical arguments to support his ideas which are his personal opinion. He does not refer to any previous works on the topic. London’s style and vocabulary would make the article of interest to any reader. The article clearly illustrates London’s points, but does not explore their implications leaving the reader with many unanswered questions.

Adapted from: "How to Write Annotated Bibliographies."  Memorial University Libraries ,  www.library.mun.ca/researchtools/guides/writing/annotated_bibl/ .

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How to Write an Annotated Bibliography

Writing annotations.

• Introduction
• New RefWorks
• Formatting Citations
• Sample Annotated Bibliographies

An annotation is a brief note following each citation listed on an annotated bibliography.  The goal is to briefly summarize the source and/or explain why it is important for a topic.  They are typically a single concise paragraph, but might be longer if you are summarizing and evaluating.

Annotations can be written in a variety of different ways and it’s important to consider the style you are going to use.  Are you simply summarizing the sources, or evaluating them?  How does the source influence your understanding of the topic?  You can follow any style you want if you are writing for your own personal research process, but consult with your professor if this is an assignment for a class.

Annotation Styles

• Combined Informative/Evaluative Style - This style is recommended by the library as it combines all the styles to provide a more complete view of a source.  The annotation should explain the value of the source for the overall research topic by providing a summary combined with an analysis of the source.  

Aluedse, O. (2006). Bullying in schools: A form of child abuse in schools.  Educational Research Quarterly ,  30 (1), 37.

The author classifies bullying in schools as a “form of child abuse,” and goes well beyond the notion that schoolyard bullying is “just child’s play.” The article provides an in-depth definition of bullying, and explores the likelihood that school-aged bullies may also experience difficult lives as adults. The author discusses the modern prevalence of bullying in school systems, the effects of bullying, intervention strategies, and provides an extensive list of resources and references.

Statistics included provide an alarming realization that bullying is prevalent not only in the United States, but also worldwide. According to the author, “American schools harbor approximately 2.1 million bullies and 2.7 million victims.” The author references the National Association of School Psychologists and quotes, “Thus, one in seven children is a bully or a target of bullying.” A major point of emphasis centers around what has always been considered a “normal part of growing up” versus the levels of actual abuse reached in today’s society.

The author concludes with a section that addresses intervention strategies for school administrators, teachers, counselors, and school staff. The concept of school staff helping build students’ “social competence” is showcased as a prevalent means of preventing and reducing this growing social menace. Overall, the article is worthwhile for anyone interested in the subject matter, and provides a wealth of resources for researching this topic of growing concern.

(Renfrow & Teuton, 2008)

• Informative Style -  Similar to an abstract, this style focuses on the summarizing the source.  The annotation should identify the hypothesis, results, and conclusions presented by the source.

Plester, B., Wood, C, & Bell, V. (2008). Txt msg n school literacy: Does texting and knowledge of text abbreviations adversely affect children's literacy attainment? Literacy , 42(3), 137-144.

Reports on two studies that investigated the relationship between children's texting behavior, their knowledge of text abbreviations, and their school attainment in written language skills. In Study One, 11 to 12 year-old children reported their texting behavior and translated a standard English sentence into a text message and vice versa. In Study Two, children's performance on writing measures were examined more specifically, spelling proficiency was also assessed, and KS2 Writing scores were obtained. Positive correlations between spelling ability and performance on the translation exercise were found, and group-based comparisons based on the children's writing scores also showed that good writing attainment was associated with greater use of texting abbreviations (textisms), although the direction of this association is not clear. Overall, these findings suggest that children's knowledge of textisms is not associated with poor written language outcomes for children in this age range. 

(Beach et al., 2009)

• Evaluative Style - This style analyzes and critically evaluates the source.  The annotation should comment on the source's the strengths, weaknesses, and how it relates to the overall research topic.

Amott, T. (1993). Caught in the Crisis: Women in the U.S. Economy Today . New York: Monthly Review Press.

A very readable (140 pp) economic analysis and information book which I am currently considering as a required collateral assignment in Economics 201. Among its many strengths is a lucid connection of "The Crisis at Home" with the broader, macroeconomic crisis of the U.S. working class (which various other authors have described as the shrinking middle class or the crisis of de-industrialization).

(Papadantonakis, 1996)

• Indicative Style - This style of annotation identifies the main theme and lists the significant topics included in the source.  Usually no specific details are given beyond the topic list . 

Example: 

Gambell, T.J., & Hunter, D. M. (1999). Rethinking gender differences in literacy. Canadian Journal of Education , 24(1) 1-16.

Five explanations are offered for recently assessed gender differences in the literacy achievement of male and female students in Canada and other countries. The explanations revolve around evaluative bias, home socialization, role and societal expectations, male psychology, and equity policy.

(Kerka & Imel, 2004)

Beach, R., Bigelow, M., Dillon, D., Dockter, J., Galda, L., Helman, L., . . . Janssen, T. (2009). Annotated Bibliography of Research in the Teaching of English.  Research in the Teaching of English,   44 (2), 210-241. Retrieved from http://www.jstor.org/stable/27784357

Kerka, S., & Imel, S. (2004). Annotated bibliography: Women and literacy.  Women's Studies Quarterly,  32 (1), 258-271. Retrieved from http://search.proquest.com/docview/233645656?accountid=2909

Papadantonakis, K. (1996). Selected Annotated Bibliography for Economists and Other Social Scientists.  Women's Studies Quarterly,   24 (3/4), 233-238. Retrieved from http://www.jstor.org/stable/40004384

Renfrow, T.G., & Teuton, L.M. (2008). Schoolyard bullying: Peer victimization an annotated bibliography. Community & Junior College Libraries, 14(4), 251-­275. doi:10.1080/02763910802336407

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How to Write a Research Paper: Annotated Bibliography

• Anatomy of a Research Paper
• Developing a Research Focus
• Background Research Tips
• Searching Tips
• Scholarly Journals vs. Popular Journals
• Thesis Statement
• Annotated Bibliography
• Citing Sources
• Evaluating Sources
• Literature Review
• Academic Integrity
• Scholarship as Conversation
• Understanding Fake News
• Data, Information, Knowledge

What is an Annotated Bibliography?

UMary Writing Center

Check out the resources available from the  Writing Center . 

Write an Annotated Bibliography

What is an annotated bibliography?

It is a list of citations for various books, articles, and other sources on a topic. 

An annotation is a short summary and/or critical evaluation of a source.

Annotated bibliographies answer the question: "What would be the most relevant, most useful, or most up-to-date sources for this topic?"

 Annotated bibliographies can be part of a larger research project, or can be a stand-alone report in itself. 

Annotation versus abstracts 

An abstract is a paragraph at the beginning of the paper that discusses the main point of the original work. They typically do not include evaluation comments. 

Annotations can either be descriptive or evaluative. The annotated bibliography looks like a works cited page but includes an annotation after each source cited. 

Types of Annotations: 

Descriptive Annotations: Focuses on description. Describes the source by answering the following questions. 

Who wrote the document?

What does the document discuss?

When and where was the document written? 

Why was the document produced?

How was it provided to the public?

Evaluative Annotations: Focuses on description and evaluation. Includes a summary and critically assess the work for accuracy, relevance, and quality. 

Evaluative annotations help you learn about your topic, develop a thesis statement, decide if a specific source will be useful for your assignment, and determine if there is enough valid information available to complete your project.

What does the annotation include?

Depending on your assignment and style guide, annotations may include some or all of the following information. 

• Should be no more than 150 words or 4 to 6 sentences long. 
• What is the main focus or purpose of the work?
• Who is the intended audience?
• ​How useful or relevant was the article to your topic?
• Was there any unique features that useful to you?
• What is the background and credibility of the author?
• What are any conclusions or observations that your reached about the article?

Which citation style to use?

There are many styles manuals with specific instructions on how to format your annotated bibliography. This largely depends on what your instructor prefers or your subject discipline. Check out our citation guides for more information. 

Additional Information

Why doesn't APA have an official APA-approved format for annotated bibliographies?

Always consult your instructor about the format of an annotated bibliography for your class assignments. These guides provide you with examples of various styles for annotated bibliographies and they may not be in the format required by your instructor. 

Citation Examples and Annotations

Book Citation with Descriptive Annotation

Liroff, R. A., & G. G. Davis. (1981). Protecting open space: Land use control in the Adirondack Park. Cambridge, MA: Ballinger.

This book describes the implementation of regional planning and land use regulation in the Adirondack Park in upstate New York. The authors provide program evaluations of the Adirondack Park Agency’s regulatory and local planning assistance programs.

Journal Article Citation with Evaluative Annotation

Gottlieb, P. D. (1995). The “golden egg” as a natural resource: Toward a normative theory of growth management. Society and Natural Resources, 8, (5): 49-56.

This article explains the dilemma faced by North American suburbs, which demand both preservation of local amenities (to protect quality of life) and physical development (to expand the tax base). Growth management has been proposed as a policy solution to this dilemma. An analogy is made between this approach and resource economics. The author concludes that the growth management debate raises legitimate issues of sustainability and efficiency.

Examples were taken from http://lib.calpoly.edu/support/how-to/write-an-annotated-bibliography/#samples

Book Citation

Lee, Seok-hoon, Yong-pil Kim, Nigel Hemmington, and Deok-kyun Yun. “Competitive Service Quality Improvement (CSQI): A Case Study in the Fast-Food Industry.” Food Service Technology 4 (2004): 75-84.

In this highly technical paper, three industrial engineering professors in Korea and one services management professor in the UK discuss the mathematical limitations of the popular SERVQUAL scales. Significantly, they also aim to measure service quality in the fast-food industry, a neglected area of study. Unfortunately, the paper’s sophisticated analytical methods make it inaccessible to all but the most expert of researchers.

Battle, Ken. “Child Poverty: The Evolution and Impact of Child Benefits.”  A Question of Commitment: Children's Rights in Canada . Ed. Katherine Covell and R.Brian Howe. Waterloo, ON: Wilfrid Laurier University Press. 2007. 21-44.

             Ken Battle draws on a close study of government documents, as well as his own research as an extensively-published policy analyst, to explain Canadian child benefit programs.  He outlines some fundamental assumptions supporting the belief that all society members should contribute to the upbringing of children.  His comparison of child poverty rates in a number of countries is a useful wake-up to anyone assuming Canadian society is doing a good job of protecting children.  Battle pays particular attention to the National Child Benefit (NCB), arguing that it did not deserve to be criticized by politicians and journalists.  He outlines the NCB’s development, costs, and benefits, and laments that the Conservative government scaled it back in favour of the inferior Universal Child Care Benefit (UCCB).  However, he relies too heavily on his own work; he is the sole or primary author of almost half the sources in his bibliography.  He could make this work stronger by drawing from others' perspectives and analyses.  However, Battle does offer a valuable source for this essay, because the chapter provides a concise overview of government-funded assistance currently available to parents.  This offers context for analyzing the scope and financial reality of child poverty in Canada.

Journal Article Example

  Kerr, Don and Roderic Beaujot. “Child Poverty and Family Structure in Canada, 1981-1997.”  Journal of Comparative Family Studies  34.3 (2003): 321-335.

             Sociology professors Kerr and Beaujot analyze the demographics of impoverished families.  Drawing on data from Canada’s annual Survey of Consumer Finances, the authors consider whether each family had one or two parents, the age of single parents, and the number of children in each household.  They analyze child poverty rates in light of both these demographic factors and larger economic issues.  Kerr and Beaujot use this data to argue that. 

Examples were taken from  http://libguides.enc.edu/writing_basics/ annotatedbib/mla

Check out these resources for more information about Annotated Bibliographies. 

• Purdue Owl- Annotated Bibliographies
• University of North Carolina at Chapel Hill- Annotated Bibliographies
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How to Write an Annotated Bibliography

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Writing your first research paper can be a challenge. Learning how to find and use sources, and then cite them properly, is an endeavor that many new students find overwhelming. Some professors like to add to this stress even more by requiring not just a research paper but an accompanying annotated bibliography. Since most students have never encountered the term annotated bibliography before entering post-secondary education, this added requirement tends to leave students everywhere scratching their heads and wondering why they ever thought pursuing a degree was a good idea.

If you're just starting to acquire research skills, you probably don't even know how to create a bibliography , let alone how to write an annotated bibliography. What the heck is an annotated bibliography, anyway, and why is your professor so intent upon your learning to create one? Haven't you acquired enough skills writing the darn paper? What does this teacher want from you? Where does it end?

The madness! The audacity of this professor! It's enough to make you want to give up.

Do not despair, dear student. For, like many things in the academic world, the term annotated bibliography is much less complicated than it sounds. Here, we present to you a simple guide on how to write an annotated bibliography. We've even included a short rationale to explain your professor's reason for making you undertake this pesky extra task in the first place.

What is an annotation?

An annotation is essentially a short summary of a source's content and argument, as well as an explanation of how that source fits the argument you are making in your paper. Annotations are typically written directly after the reference list entry for a source, and they usually should not exceed 150 words. Short and concise is the goal. Be sure to check your professor's guidelines, as he or she may have different expectations for length.

Annotations should not be confused with abstracts . Although both are short summaries of particular works, an abstract accompanies an article in a journal, providing a brief description of the article's contents. An annotation further provides an evaluation of the book, article, or resource in question.

When should I write my annotations?

The basic sequence for creating an annotated bibliography should go like this:

• Decide on your thesis .
• Find sources to support your thesis, altering your thesis if necessary.
• Keep track of those sources, including what information you are taking from them, so that you can cite them properly within your paper.
• Write your paper, citations included.
• Using the information you collected during the research process, create a bibliography with annotated entries.

So, you basically want to gather the information required to write each annotation as you are writing your actual paper. You have to keep track of what you are taking from each source anyway, so this really isn't extra work. The tricky part of how to write an annotated bibliography isn't collecting the proper information—rather, it is stating that information as concisely as possible.

Breaking it down: The anatomy of an annotation

Now that you (hopefully) get the idea, here's an example of an annotated reference. This example has been taken from a paper that argued that purple is the best color because it is a combination of blue and red. Keep in mind that the example citation is written according to APA style; the formatting, particularly of the citation, is differs among the style guides, but the basic information contained in the annotation generally remains the same.

In the following example, the orange text states what the paper is about, the purple explains what makes it a credible source, the green outlines the findings of the paper, and the blue describes how the argument in the paper applies to the author's own paper.

Why do you have to learn how to write an annotated bibliography, anyway?

If you've been working on the same paper for ages, the last thing you want to do is spend more time on that paper. It may seem as if your professor is simply trying to irritate you, but rest assured, there is a reason your instructor wants you to know how to write an annotated bibliography.

The reason is that creating a list that shows exactly how you've used each source demonstrates two things. First, it shows that you read and understood the research you have cited in your work. This basically ensures that you've actually learned how to properly write a research paper , which is a major goal of undergraduate classes. Second, creating an annotated bibliography helps you better develop your own thesis and support. When you think actively about how your argument is being supported, you are more capable of seeing where your reasoning or support may be falling short. That's right—creating an annotated bibliography can actually help you write a better paper!

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DOC 3 Annotated Bibliography: Annotated Bibliography

• Annotated Bibliography
• Abstract VS Annotations
• Critical Appraisal & Analysis
• Sample Annotations
• Creating Annotations

What is an Annotated Bibliography?

A bibliography is a list of works (books, articles, films, etc.) on a particular topic. An annotated bibliography includes a paragraph following each citation that summarizes the work. An annotation can help the reader determine the value of each work on the topic and the contribution it might make to his own research.

Elements of an Annotation

a brief summary (2-4 sentences) of the article, including the author’s name and what you think is the author’s primary point or thought;

• a description of the intended audience;
• how the article illuminates your bibliography topic;
• an evaluation of the source’s usefulness, reliability, strengths and weaknesses and its value for your research;
• how this specific article relates to another article in your bibliography

For more information, see:

• Annotated Bibliographies UMKC Libraries
• How Do I Write an Annotated Bibliography UC Santa Cruz Library
• Preparing an Annotated Bibliography The Writing Studio, Colorado State University

This information was adapted with permission from  How to Prepare an Annotated Bibliography , Hesburgh Libraries, University of Notre Dame.

Types of Annotation

• Descriptive
• Informative

There are different kinds of annotations, depending on what might be most important for your reader to learn about a source. Three common types of annotated bibliographies are  Descriptive ,  Informative , and  Critical .

A Descriptive annotation may summarize:

• The main purpose or idea of the work
• The contents of the work
• The author’s conclusions
• The intended audience
• The author’s research methods
• Special features of the work such as illustrations, maps, and tables

This type of annotation seeks to answer the question, Does this source cover or address the topic I am researching?

This information was adapted with permission rom the following:  How to prepare an annotated bibliography  Hesburgh Libraries, University of Notre Dame.

An  Informative  annotation:

• Summarizes what the content, message, or argument of the source is
• Generally contains the hypothesis, methodology, main points, and conclusion or results
• Does not include any editorial or evaluative comments about such content

This type of annotation seeks to answer these types of questions,  What are the author's main arguments? What conclusions did the author draw?

Critical  annotation includes value judgments or comments on the effectiveness of the work. In this context, critical means evaluative and may include both positive and negative comments. A critical annotation may contain the information found in a descriptive annotation and discuss some of the following features:

• The importance of the work’s contribution to the literature of the subject
• The author’s bias or tone
• The author’s qualifications for writing the work
• The accuracy of the information in the source
• Limitations or significant omissions
• The work’s contribution to the literature of the subject
• Comparison with other works on the topic

This type of annotation seeks to answer these types of questions:

• Is the author's presentation of the facts objective?
• Is the methodology sound? Is this source useful for my audience?
• Are the conclusions still valid in light of new research?
• What contribution does this make to the field?
• Does this source address all the relevant issues?
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What is an Annotated Bibliography?

An annotated bibliography is a summary and evaluation of a resource. According to Merriam-Webster, a bibliography is “the works or a list of the works referred to in a text or consulted by the author in its production.” Your references (APA) or Works Cited (MLA) can be considered a bibliography. A bibliography follows a documentation style and usually includes bibliographic information (i.e., the author(s), title, publication date, place of publication, publisher, etc.). An annotation refers to explanatory notes or comments on a source.

An annotated bibliography, therefore, typically consists of:

Documentation for each source you have used, following the required documentation style.

For each entry, one to three paragraphs that:

Begins  with a summary ,

Evaluates  the reliability of the information,

Demonstrates  how the information relates to previous and future research.

Entries in an annotated bibliography should be in alphabetical order.

** Please note: This may vary depending on your professor’s requirements.

Why Write an Annotated Bibliography?

Why Write an Annotated Bibliography

Writing an annotated bibliography will help you understand your topics in-depth.

An annotated bibliography is useful for organizing and cataloging resources when developing an argument.

Formatting an Annotated Bibliography

Formatting Annotated Bibliographies

• Use 1-inch margins all around
• Indent annotations ½ inch from the left margin.
• Use double spacing.
• Entries should be in alphabetical order.

Structure of an Annotated Bibliography

This table provides a high-level outline of the structure of a research article and how each section relates to important information for developing an annotated bibliography.

Annotated Bibliography Sample Outline

Author, S. A. (date of publication). Title of the article.  Title of Periodical, vol.  (issue), page-page.  https://doi.org/XXXXXX

Write one or two paragraphs that focus on the study and its findings.

• Two or more sentences that outline the thesis, hypothesis, and population of the study.
• Two or more sentences that discuss the methodology.
• Two or more sentences that discuss the study findings.  
• One or more sentences evaluating the study and its relationship to other studies.

Sample Annotated Bibliographies

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Annotated Bibliography Examples

• Examples of an Annotated Bibliography Use this document as an example of how to create an annotated bibliography for MLA, APA or Chicago styles.

Annotations vs. Abstract

Annotation vs. abstract.

At first glance, it may seem like a resource abstract and an annotation are the same thing. However, they serve different purposes

Abstracts are specifically descriptive summaries located at the beginning of scholarly journal articles or indexes. 

Annotation:

Annotations are often contextual to the research project. They are meant to assist in writing research papers by including not only a brief summary, but also one or more sentences that (a) evaluate the author's authority, (b) comment on the intended audience, (c) explain how this work ties in with your thesis or (d) compare or contrast this work with another you have cited.

What is an Annotated Bibliography?

An annotated bibliography is a combination of two parts: the citation (in your chosen style) and a brief description of the source and how it is useful to your research. They can be used with any citation style (MLA, APA, Chicago, etc.).  

Annotated bibliographies are a great way to collect your sources and determine how and why you have chosen to include them for your assignment. They help you think about the quality of the source you have chosen. 

The annotation, or description, part of the annotated bibliography is normally between 3-5 sentences, but may vary depending on what your instructor requires. Typically included in the annotation:

• A short summary of the source and its information.
• An assessment of the quality of information in the source. (Is the information reliable? What is the goal of the source? How does it compare to other resources you have collected? etc.)
• An evaluation of how this source will be useful for your assignment. (Has it changed your thinking of your topic? How will it help shape your argument?) 

**Keep in mind your instructor may have different guidelines for your annotation than the three listed here. Always be sure to follow the requirements given by your instructor. **

Annotated Bibliographies are structured the same way as any other Works Cited or References page. Each citation is placed in alphabetical order and has a hanging indent. The annotation directly follows the citation it is describing. 

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The Process

Finding and selecting sources.

The quality and usefulness of your bibliography will depend on your selection of sources. Define the scope of your research carefully so that you can make good judgments about what to include and exclude. By understanding the requirements and focus of your research it will make the search process more streamlined. Refer to the  Finding Scholarly Sources  guide for searching tips. Consider these questions to help you find appropriate limits for your research:

• What topic do I want to write about? What  question(s)  am I trying to answer? If your bibliography is part of a research project, this project will probably be governed by a research question/thesis. If your bibliography is a project on a general topic (e.g. incarceration and economic status), try formulating your topic as a question or a series of questions in order to define your search more precisely( ie. How does economic status effect incarceration sentences?) 
• What  kind of material  am I looking for? (scholarly academic books and journal articles? government reports or policy statements? articles from the popular press? primary historical sources? etc.)
• Do my sources fit the requirements of the assignment?

Summarizing

Your annotation should identify the main argument of the source. This is often the source's thesis or hypothesis. Include a brief description of the source's main points and the author's final conclusion. 

The following reading strategies can help you identify the argument of your source:

• Identify the author’s thesis (central claim or purpose), research question, or hypothesis. Both the introduction  and  the conclusion can help you with this task.
• Look for repetition of key terms or ideas. Follow them through the text and see what the author does with them. Note especially the key terms that occur in the thesis or research question that governs the text.
• Notice how the text is laid out and organized. What are the main divisions or sections? What is emphasized? Why? Accounting for why will help you to move beyond listing contents and toward giving an account of the argument.
• Notice whether and how a theory is used to interpret evidence or data. Identify the method used to investigate the problem/s addressed in the text.
• Pay attention to the opening sentence(s) of each paragraph, where authors often state concisely their main point in the paragraph.
• Look for paragraphs that summarize the argument. A section may sometimes begin or conclude with such a paragraph.

This section will be specific to your overall research. How does the source fit into the argument you are making in your paper? If your annotated bibliography is not part of a larger assignment, how does the source contribute to your larger selection of sources? Some thoughts to consider:

• Are you interested in the way the source frames its research question or in the way it goes about answering it (its method)? Does it make new connections or open up new ways of seeing a problem? 
• Are you interested in the way the source uses a theoretical framework or a key concept? 
• Does the source gather and draw from other ideas and sources that you want to use? 
• How do the source’s conclusions bear on your own thoughts?

In order to determine how you will use the source or define its contribution, you will need to assess the quality of the argument: why is it of value? what are its limitations? how well defined is its research problem? how effective is its method of investigation? how good is the evidence? would you draw the same conclusions from the evidence?

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