**Wizard Book** n. Hal Abelson's, Jerry Sussman's and Julie Sussman's *Structure and Interpretation of Computer Programs* (MIT Press, 1984; ISBN 0-262-01077-1) page 
, full text , an excellent computer science text used in introductory courses at MIT. So called because of the wizard on the jacket. One of the bibles of the LISP/Scheme world. Also, less commonly, known as the Purple Book.