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- What Is an Annotated Bibliography? | Examples & Format
What Is an Annotated Bibliography? | Examples & Format
Published on March 9, 2021 by Jack Caulfield . Revised on August 23, 2022.
An annotated bibliography is a list of source references that includes a short descriptive text (an annotation) for each source. It may be assigned as part of the research process for a paper , or as an individual assignment to gather and read relevant sources on a topic.
Scribbr’s free Citation Generator allows you to easily create and manage your annotated bibliography in APA or MLA style. To generate a perfectly formatted annotated bibliography, select the source type, fill out the relevant fields, and add your annotation.
The Scribbr Citation Generator will automatically create a flawless APA citation
The Scribbr Citation Generator will automatically create a flawless MLA citation
An example of an annotated source is shown below:
Table of contents
Annotated bibliography format: apa, mla, chicago, how to write an annotated bibliography, descriptive annotation example, evaluative annotation example, reflective annotation example, finding sources for your annotated bibliography, frequently asked questions about annotated bibliographies.
Make sure your annotated bibliography is formatted according to the guidelines of the style guide you’re working with. Three common styles are covered below:
In APA Style , both the reference entry and the annotation should be double-spaced and left-aligned.
The reference entry itself should have a hanging indent . The annotation follows on the next line, and the whole annotation should be indented to match the hanging indent. The first line of any additional paragraphs should be indented an additional time.
In an MLA style annotated bibliography , the Works Cited entry and the annotation are both double-spaced and left-aligned.
The Works Cited entry has a hanging indent. The annotation itself is indented 1 inch (twice as far as the hanging indent). If there are two or more paragraphs in the annotation, the first line of each paragraph is indented an additional half-inch, but not if there is only one paragraph.
Chicago style
In a Chicago style annotated bibliography , the bibliography entry itself should be single-spaced and feature a hanging indent.
The annotation should be indented, double-spaced, and left-aligned. The first line of any additional paragraphs should be indented an additional time.
For each source, start by writing (or generating ) a full reference entry that gives the author, title, date, and other information. The annotated bibliography format varies based on the citation style you’re using.
The annotations themselves are usually between 50 and 200 words in length, typically formatted as a single paragraph. This can vary depending on the word count of the assignment, the relative length and importance of different sources, and the number of sources you include.
Consider the instructions you’ve been given or consult your instructor to determine what kind of annotations they’re looking for:
- Descriptive annotations : When the assignment is just about gathering and summarizing information, focus on the key arguments and methods of each source.
- Evaluative annotations : When the assignment is about evaluating the sources , you should also assess the validity and effectiveness of these arguments and methods.
- Reflective annotations : When the assignment is part of a larger research process, you need to consider the relevance and usefulness of the sources to your own research.
These specific terms won’t necessarily be used. The important thing is to understand the purpose of your assignment and pick the approach that matches it best. Interactive examples of the different styles of annotation are shown below.
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A descriptive annotation summarizes the approach and arguments of a source in an objective way, without attempting to assess their validity.
In this way, it resembles an abstract , but you should never just copy text from a source’s abstract, as this would be considered plagiarism . You’ll naturally cover similar ground, but you should also consider whether the abstract omits any important points from the full text.
The interactive example shown below describes an article about the relationship between business regulations and CO 2 emissions.
Rieger, A. (2019). Doing business and increasing emissions? An exploratory analysis of the impact of business regulation on CO 2 emissions. Human Ecology Review , 25 (1), 69–86. https://www.jstor.org/stable/26964340
An evaluative annotation also describes the content of a source, but it goes on to evaluate elements like the validity of the source’s arguments and the appropriateness of its methods .
For example, the following annotation describes, and evaluates the effectiveness of, a book about the history of Western philosophy.
Kenny, A. (2010). A new history of Western philosophy: In four parts . Oxford University Press.
A reflective annotation is similar to an evaluative one, but it focuses on the source’s usefulness or relevance to your own research.
Reflective annotations are often required when the point is to gather sources for a future research project, or to assess how they were used in a project you already completed.
The annotation below assesses the usefulness of a particular article for the author’s own research in the field of media studies.
Manovich, Lev. (2009). The practice of everyday (media) life: From mass consumption to mass cultural production? Critical Inquiry , 35 (2), 319–331. https://www.jstor.org/stable/10.1086/596645
Manovich’s article assesses the shift from a consumption-based media culture (in which media content is produced by a small number of professionals and consumed by a mass audience) to a production-based media culture (in which this mass audience is just as active in producing content as in consuming it). He is skeptical of some of the claims made about this cultural shift; specifically, he argues that the shift towards user-made content must be regarded as more reliant upon commercial media production than it is typically acknowledged to be. However, he regards web 2.0 as an exciting ongoing development for art and media production, citing its innovation and unpredictability.
The article is outdated in certain ways (it dates from 2009, before the launch of Instagram, to give just one example). Nevertheless, its critical engagement with the possibilities opened up for media production by the growth of social media is valuable in a general sense, and its conceptualization of these changes frequently applies just as well to more current social media platforms as it does to Myspace. Conceptually, I intend to draw on this article in my own analysis of the social dynamics of Twitter and Instagram.
Before you can write your annotations, you’ll need to find sources . If the annotated bibliography is part of the research process for a paper, your sources will be those you consult and cite as you prepare the paper. Otherwise, your assignment and your choice of topic will guide you in what kind of sources to look for.
Make sure that you’ve clearly defined your topic , and then consider what keywords are relevant to it, including variants of the terms. Use these keywords to search databases (e.g., Google Scholar ), using Boolean operators to refine your search.
Sources can include journal articles, books, and other source types , depending on the scope of the assignment. Read the abstracts or blurbs of the sources you find to see whether they’re relevant, and try exploring their bibliographies to discover more. If a particular source keeps showing up, it’s probably important.
Once you’ve selected an appropriate range of sources, read through them, taking notes that you can use to build up your annotations. You may even prefer to write your annotations as you go, while each source is fresh in your mind.
An annotated bibliography is an assignment where you collect sources on a specific topic and write an annotation for each source. An annotation is a short text that describes and sometimes evaluates the source.
Any credible sources on your topic can be included in an annotated bibliography . The exact sources you cover will vary depending on the assignment, but you should usually focus on collecting journal articles and scholarly books . When in doubt, utilize the CRAAP test !
Each annotation in an annotated bibliography is usually between 50 and 200 words long. Longer annotations may be divided into paragraphs .
The content of the annotation varies according to your assignment. An annotation can be descriptive, meaning it just describes the source objectively; evaluative, meaning it assesses its usefulness; or reflective, meaning it explains how the source will be used in your own research .
A source annotation in an annotated bibliography fulfills a similar purpose to an abstract : they’re both intended to summarize the approach and key points of a source.
However, an annotation may also evaluate the source , discussing the validity and effectiveness of its arguments. Even if your annotation is purely descriptive , you may have a different perspective on the source from the author and highlight different key points.
You should never just copy text from the abstract for your annotation, as doing so constitutes plagiarism .
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Annotated Bibliographies
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This handout provides information about annotated bibliographies in MLA, APA, and CMS.
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.
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Common Assignments: Annotated Bibliographies
- Writing a Successful Discussion Post
- Writing a Successful Response to Another's Post
- Read the Prompt Carefully
- Critically Reflect & Organize
- Construct a Draft
- Review and Revise
- Contrast and Alignment
- Repetition and Proximity
Basics of Annotated Bibliographies
Components of an annotated entry, related multimedia resources.
- Webpage Feedback
- Critique/Analysis
- Application
- Synthesizing Your Sources
- Commentary Versus Opinion
- Literature Review Matrix
- Content and Structure of Course-Based PDPs
- Content and Structure of KAM-Based PDPs
- Executive Summaries
- Writing in the Social Sciences
- Collaborative Writing in Business & Management
- Writing in Nursing
- Learning Agreements (LAs)
- KAM Abstracts
- KAM Breadths
- KAM Applications
- Tables, Figures, References, and Appendices
An annotated bibliography is a combination of the words "annotation" and "bibliography." An annotation is a set of notes, comments, or critiques. A bibliography is list of references that helps a reader identify sources of information. An annotated bibliography is a list of references that not only identifies the sources of information but also includes information such as a summary, a critique or analysis, and an application of those sources' information.
Review our resources on the following pages for more information about each component of an annotated bibliography. As always, read the instructions and any examples in your assignment carefully; some of what follows might not be required in your particular course.
Download the following sample to see the components of an annotated bibliography. Follow the links to more information on formatting, summary, critique/analysis, application, and example in the left sidebar menu. Note that citations are not necessary in the annotations since the notes are understood to be about the listed source.
- Annotated Bibliography Sample Document A sample of an annotated bibliography illustrating its various components. Updated to APA 7 guidelines.
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IMAGES
VIDEO
COMMENTS
The annotation above both summarizes and assesses the book in the citation. The first paragraph provides a brief summary of the author's project in the book, covering the main points of the work. The second paragraph points out the project’s strengths and evaluates its methods and presentation.
An annotated bibliography is a list of source references that includes a short descriptive text (an annotation) for each source. It may be assigned as part of the research process for a paper, or as an individual assignment to gather and read relevant sources on a topic.
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. Summarize: Some annotations merely summarize the source. What are the main arguments?
An annotated bibliography is a list of references that not only identifies the sources of information but also includes information such as a summary, a critique or analysis, and an application of those sources' information. Review our resources on the following pages for more information about each component of an annotated bibliography.
Assignment and create an annotated bibliography for those sources. These are the elements that go into an Annotated Bibliography: 1) A works cited entry. Make sure you are using the specific format for whatever type of source you are using in your paper. In other words, if you are citing a short work on a website,