Exhibition catalogue published in conjunction with show held at Museum of Contemporary Art, Chicago, December 18, 1971 - January 30, 1972. Texts by Stephen S. Prokopoff, Robert Pincus-Witten. Artists include: Peter Agostini, Josef Albers, Arman, Robert Arneson, Jean Arp, Mel Bochner, Ilya Bolotowsky, Joe Brainard, Enrico Castellani, Chryssa, Edward Corbett, Mary Corse, Nassos Daphnis, Gene Davis, Robert Delaunay, David Diao, Piero Dorazio, Lucio Fontana, Sam Francis, Jasper Johns, Ellsworth Kelly, Thomas Kovachevich, Sol LeWitt, Kazimir Malevich, Piero Manzoni, Brice Marden, Agnes Martin, John McCracken, Paul Mogensen, Louis Nevelson, Isamu Noguchi, David Novros, Robert Rauschenberg, Ad Reinhardt, Sam Richardson, Germaine Richier, Dorothea Rockburne, Robert Ryman, Angelo Savelli, George Segal, Henryk Stazewski, Antonio Tapies, Mark Tobey, Guther Uecker, Georges Vantongerloo. Includes exhibition checklist.