At head of title: Ente della Casa Buonarroti. This thorough presentation of Michelangelo's drawings is designated as a "Corpus" (not a catalogue raisonné). Oit is nonetheless an extremely extensive compilation, the result of a life-long study of the artist's work by the author. For those interested in a critique with evaluations and emendations, see P. Joannides well- considered review which apeared in the "Art Bulletin" (v. 63, no. 4, Dec., 1981, pp. 679-87).