Originally published in June 1987 in hardback, this major work is now available to a wider audience as a paperback. Again published as a two volume set, the paper edition represents a unique contribution to this multidisciplinary science. Bringing together peer reviewed contributions from more than 200 experts working under a distinguished board, it is comprehensive, and cross referenced to give easy access to every facet of AI. With more than 450 illustrations and tables, this paperback edition brings the text within the reach of a new generation of students, lecturers, researchers and practitioners alike.