Students should style a source in an annotated bibliography just as they would in a list of works cited and then append an annotation to the end of the entry. Annotations describe or evaluate sources. As James Harner writes, “[G]ood annotations accurately and incisively—but not cryptically—distill the essence of works” and “focus the reader’s attention on major points” (28). Annotations should not rehash minor details, cite evidence, quote the author, or recount steps in an argument. Writing an effective annotation requires reading the work, understanding its aims, and clearly summarizing them. For this reason, annotations may aid students in conducting research.