Douglas Cooper and Gary Tinterow, The Essential Cubism: Braque, Picasso and their Friends, 1907-1920. New York, George Braziller, Inc., in association with the Tate Gallery, London, 1983, 448 pp., 233 illus., 65.00 (cloth) - Flagg, Peter (RACAR : Revue d'art canadienne / Canadian Art Review, 1987)