Creating an annotated bibliography calls for the application of a variety of intellectual skills: concise exposition, succinct analysis, and informed library research.
First, locate and record citations to books, periodicals, and documents that may contain useful information and ideas on your topic. Briefly examine and review the actual items. Then choose those works that provide a variety of perspectives on your topic.
Cite the book, article, or document using the appropriate style.
Write a concise annotation that summarizes the central theme and scope of the book or article. Include one or more sentences that (a) evaluate the authority or background of the author, (b) comment on the intended audience, (c) compare or contrast this work with another you have cited, or (d) explain how this work illuminates your bibliography topic.
Critically appraise the quality and relevance of the source: author information (what are the author's credentials? is the author an expert?), publisher (is it an academic publisher?), date of publication (is it still relevant?), edition (is it an older or most recent edition?
Source: Cornell University Library "How to Prepare an Annotated Bibliography: The Annotated Bibliography