Index Indexes document the literature in specific disciplines or subject areas. However, unlike abstracts, indexes do not provide summaries of the contents of the sources they cover. Manual A book of rules or instruction on how to accomplish a task or perform a series of related tasks or activities. As the name implies, an annual publication. Yearbooks often focus on a specific group or topic.
More general yearbooks are often supplements to or updates of general encyclopedias.
Word Meanings, Word Origins, Word Pronunciation, etc. Use the same strategy for biographical.