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What is an Annotated Bibliography?

How to create an annotated bibliography: summarise and evaluate sources, write annotations, and format entries in APA, MLA and Chicago.

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What is an Annotated Bibliography?

An annotated bibliography is a list of sources (books, articles, documents, etc.) that includes a brief summary and evaluation of each source. Unlike a regular bibliography, which only lists citations, an annotated bibliography explains the relevance, accuracy, and quality of each source.

Why Annotated Bibliographies Matter

  • Shows Research Depth: Demonstrates understanding of sources and their contribution to your topic.
  • Helps Organise Research: Keeps track of key ideas and how they connect to your thesis.
  • Assists Future Writing: Serves as a foundation for literature reviews and research papers.

Main Components

  • Citation: Properly formatted in APA, MLA, or Chicago style.
  • Annotation: A concise summary of the source’s main points, an evaluation of its credibility, and a reflection on how it supports your work.

Types of Annotations

  • Summary: Focuses on main arguments and conclusions.
  • Evaluation: Judges the reliability and quality of the source.
  • Reflective: Explains how the source fits your research goals.

Formatting Examples

APA Example:
Smith, J. (2022). Climate Change and Policy. Oxford University Press.
This book provides a comprehensive analysis of climate change policies and their global impact. The author uses empirical evidence to explain the challenges governments face in implementing sustainable measures.

MLA Example:
Smith, John. Climate Change and Policy. Oxford University Press, 2022.
This source offers valuable insights into environmental policy-making. Its detailed approach makes it useful for students studying sustainability and politics.

How to Create One Step-by-Step

  1. Gather and read all your research sources carefully.
  2. Choose reliable and relevant materials for your topic.
  3. Write a full citation in the required style.
  4. Add your annotation: summarise, evaluate, and reflect on the source.
  5. Arrange all entries alphabetically by author’s last name.

Best Practices

  • Keep annotations concise (around 150–200 words each).
  • Maintain consistent formatting throughout the document.
  • Focus on how each source supports your argument or research question.

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