Descriptive: Annotation summarizes the content (e.g., the main idea, content, and plot) and explains its value to your research. When relevant to your research, concisely include the following information:
What is the purpose of this source? Is the author's intention to persuade, to inform, to analyze, to inform, or to argue for a point-of-view?
How did it help you understand your topic? How did you use it? Did its bibliography lead you to new sources?
Critical: Annotation includes a description (see above), then evaluates the quality of your source related to others and the value of its information to your research.
What is missing or questionable?
Is there evidence of bias or distortion?
Are there errors or weaknesses?
How does this source fit with or compare to other sources used?
Germanna Community College Sample MLA Annotated Bibliography (NOTE: sample annotations are approximately 125 words each.)