How to Write a Annotated Bibliography in APA

What an annotated bibliography does

An annotated bibliography is a list of sources, each followed by a short paragraph that describes and evaluates the work. In APA style, the citation follows the seventh edition rules, and the annotation hangs indented beneath it. Instructors use it to see that you have read carefully and can judge which sources are worth using.

The strongest annotations do three things: they summarize what the source says, they evaluate its quality and relevance, and they explain how it fits your project. An annotation that only summarizes is the most common reason these lose marks.

Get the APA citation right first

Before you write a word of annotation, format the citation correctly. APA seventh edition uses a hanging indent, an author-date in-text style, and specific rules for books, journal articles, and websites. A perfectly written annotation attached to a wrong citation still loses points, so nail the format first.

The annotation itself is usually one paragraph of about 150 words, double-spaced, with a hanging indent that matches the citation. It is not introduced by a heading or a label; it simply begins below the citation. Keep the tone concise and analytical, not promotional.

The writing process, source by source

1. 1
   Format the citation

   Build the APA seventh edition citation with a hanging indent before adding anything else.

2. 2
   Summarize the content

   State the source's main argument or findings in two or three sentences.

3. 3
   Evaluate the source

   Assess its credibility, method, currency, and any bias or limitations.

4. 4
   State its relevance

   Explain specifically how this source supports or challenges your project.

What each part of an annotation should do

Habits that strengthen APA annotations

• Format the citation with a hanging indent before writing the annotation.
• Keep each annotation to one tight paragraph of about 150 words.
• Cover summary, evaluation, and relevance in every entry.
• Use the same verb tense and concise tone throughout the set.

Annotation basics

Putting It Into Practice

The gap between knowing a rule and applying it is where most writers stumble. Reading about a concept feels productive, but real improvement comes from catching the pattern in your own drafts. The next time you finish a draft, scan it specifically for the issues covered here before moving on to broader edits. Targeted passes catch problems that a general read-through misses because your brain normalizes what you just wrote.

A practical way to build the habit is to keep a short checklist of your most common mistakes and review it before submitting anything important. Over time, the patterns become automatic and the checklist shrinks. The goal is not perfection on the first draft but consistent improvement over dozens of drafts, each slightly better than the last.