This document provides information on how to write an annotated bibliography, including what an annotated bibliography is, why they are useful, how to format annotations, and examples. An annotated bibliography contains bibliographic citations of used sources as well as a brief paragraph description for each source that summarizes the main ideas and provides an evaluation. Writing annotations helps readers understand if sources are relevant and credible to the research while also helping the writer engage critically with each source and identify redundant information across sources.