Edited by Arnold Glimcher and Marc Glimcher. With contributions by Claude Picasso, E.A. Carmean, Robert Rosenblum, Theodore Reff, Rosalind E. Krauss, Sam Hunter, Gert Schiff, Françoise Gilot. With over 600 reproductions in colour and duotone. With the Catalogue Raisonné of the 175 known Sketchbooks created by the Artist .