Completing an annotated bibliography can also assist you in assessing whether you have sufficient material to write the paper (or whether you need to go out and find more information).

Purpose
An annotation is a summary and/or evaluation. Therefore, an annotated bibliography includes a summary and/or evaluation of each of the sources you are considering using in your paper. Depending on your project or the assignment, your annotations can help you summarize, assess, and reflect on your topic. Writing an annotated bibliography is excellent preparation for a research project.

There are a number of reasons why I have students complete this assignment: For example, writing an annotated bibliography helps you evaluate the credibility and authority of your sources so that you are sure to use the highest quality referencing material. It can help writers understand and be better informed before making judgments and writing about a topic. It also aids in distinguishing between your [personal] views and bias on a topic and what the research actually shows. Completing an annotated bibliography can also assist you in assessing whether you have sufficient material to write the paper (or whether you need to go out and find more information).