Exhibition catalogue published in conjunction with show held at the Kunstmuseum Winterthur, Switzerland, June 1 - August 11, 1996. Traveled to the Swiss Institute, New York, September 12 - October 26, 1996. Text by Dieter Schwarz, Roger Perret, John Cage, Morton Feldman, David Hare, Morris Kantor, Richard Lippold, Robert Motherwell, and Betty Parsons. With biography, bibliography, exhibition history, and list of plates. 112 color and black-and-white plates in addition to numerous black-and-white illustrations throughout the text. In German.