How to Write an Annotated Bibliography
Writing an annotated bibliography is daunting and requires a lot of concentration. An annotated bibliography definition is a list of sources (books, articles, websites, etc.) with a brief description and evaluation of each source.

This type of bibliography will provide a helpful overview of the sources you have consulted and will guide you as you write your research paper. Additionally, it will demonstrate to your instructor that you have engaged in a thorough and thoughtful examination of the available literature on your topic.
In this article, we shed more light on what an annotated bibliography is. Tag along to find out more.
What Is a Bibliography
A bibliography is a list of sources (books, articles, websites, etc.) that are always in use in research or cited in a written work, such as a book, article, or essay. The purpose of a bibliography is to give credit to the authors whose work gets to provide a list of resources for further research.
Bibliographies can exist in different formats, such as alphabetically by author’s last name or publication date. The most common formats in use in academic writing are MLA, APA, and Chicago. The bibliography format will depend on the citation style used in the written work.
What Is an Annotated Bibliography
An annotated bibliography is a list of sources (books, articles, websites, etc.) with a brief description and evaluation of each source. An annotated bibliography’s purpose is to summarize each source’s content and evaluate its relevance, reliability, and contribution to a specific topic or research project.
A bibliography serves as a research tool to help the writer better understand a topic and the available resources, and to organize the sources for a paper or project. The annotations can be written as descriptive or critical comments and are usually 1-2 sentences long.
Each source gets done in the appropriate format (e.g., MLA, APA, Chicago, etc.) and follows an annotation, a brief (usually 1-2 sentences) description, and an evaluation of the source.
Annotated Bibliography Format
The format of an annotated bibliography can vary depending on the citation style used, but typically it consists of the following elements for each source:
- Choose the sources you want to include in your bibliography, making sure they are relevant and credible.
- Write a citation for each source in the appropriate format (e.g., MLA, APA, Chicago, etc.)
- Please write a brief summary of each source’s content, including the main arguments and conclusions.
- Evaluate the source by considering its relevance, reliability, and contribution to your topic.
- Write a brief (usually 1-2 sentences) annotation that integrates the summary and evaluation.
- Repeat steps 3-5 for each source.
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Annotated Bibliography for Research Paper

An annotated bibliography for a research paper, is a list of sources in the paper that entails a precise descriptive and evaluative paragraph for each source. It provides additional information about the sources and helps to support the research conducted for the paper.
Each source listed in the annotated bibliography includes; a citation in the format specified (APA, MLA, Chicago, etc.) and a summary of the source’s main argument or purpose. Additionally, the annotation evaluates the source, discussing its relevance, accuracy, and quality and explaining why it has to be in the bibliography.
The purpose of an annotated bibliography is to provide background information and context for the reader and to demonstrate the research conducted to support the paper. In addition, it helps to strengthen the overall quality and credibility of the research by providing a comprehensive overview of the sources used.
Examples of an Annotated Bibliography
Here are two examples of an annotated bibliography in MLA and APA formats:
MLA Format
Smith, John. “The Impact of Social Media on Society.” Social Science Journal 56.2 (2020): 123-145.
- Summary: This article explores the effects of social media on various aspects of society, including politics, relationships, and mental health.
- Evaluation: The author provides a comprehensive overview of the topic and supports their conclusions with data and studies. The article is well-researched and reliable.
- Annotation: This article is a valuable resource for understanding the impact of social media on society, providing a well-researched and reliable overview of the topic.
APA Format:
Smith, J. (2020). The impact of social media on society. Social Science Journal, 56(2), 123-145.
- Summary: This article examines the effects of social media on various aspects of society, including politics, relationships, and mental health.
- Evaluation: The article is well-researched and provides a comprehensive overview. Data and studies support the author’s conclusions.
- Annotation: This article provides a comprehensive overview of the impact of social media on society and is well-researched and supported by data and studies.
Note: The citation and annotation formats will vary depending on the citation style used. These examples use MLA and APA formats, respectively,
To write a complete high school paper, you should start by formulating a clear research question or thesis statement. Then, research to find sources that will help you answer your research question or support your thesis.
Finally, now that you know how to do an annotated bibliography, use the sources in your annotated bibliography to support your argument in your paper and draw a conclusion based on the evidence you have presented.
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