A reference work is a book or serial publication that contains useful facts and information such as encyclopedias, dictionaries, thesauruses, almanacs, and catalogs. Generally, reference works are consulted for particular pieces of information, rather than read from beginning to end. Most reference works are compiled by a team of contributors whose work is coordinated by one or more editors rather than by an individual author. Updated editions are usually published as needed, in some cases annually (e.g., almanacs, who's who). NOTE: Dictionary definitions and very short encyclopedia entries can be used as a beginning point in your research, however, do not count these sources as one of the "minimum of three" academic resources. Interacting with more in-depth academic material will help raise your score.