An annotation both summarizes and evaluates the material found in a particular source. When writing an annotation you should answer these questions:
1) Who is the author, and what is his/her authority or background?
2) What is the author’s thesis? What are the author’s main claims?
3) Who is the author’s intended audience?
4) Is there any bias or slant in the article/chapter/book/site?
5) What are the strengths and weaknesses of this source?
6) Does the information in this source support or counter the thesis of your research paper/project?
7) How relevant is this material in terms of your paper/project?
Example: https://owl.english.purdue.edu/owl/resource/614/01/