|An annotated bibliography is a list of citations to books, articles, and documents.
Each citation is followed by a brief (usually about 150 words) descriptive and evaluative paragraph, the annotation.
The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited.
Annotations are descriptive and critical; they expose the author's
Abstracts are the purely descriptive summaries often found at the beginning of scholarly journal articles or in periodical indexes.