This selected bibliography of guides to the literature of different disciplines is intended to serve as a starting point for researchers. Each source typically lists important reference works, such as encyclopedias, dictionaries, biographical sources, indexes, and bibliographies, that may be used to find information and conduct research. Additional guides can be located in OBIS under the subject heading "Reference books" or by doing a word or subject search for the name of a topic or discipline and the word "bibliography." If you need assistance with your research, ask a member of the reference staff for guidance.