Librarians and library school faculty have been experimenting with artificial intelligence (AI) and expert systems for 30 years, but there has been no comprehensive survey of the results available until now. In this carefully researched monograph, authors Lancaster and Warner report on the applications of AI technologies in library and information services, assessing their effectiveness, reviewing the relevant literature, and offering a clear-eyed forecast of future use and impact. Includes almost 500 bibliographic references.