Exhibition catalogue published in conjunction with show held at the Galleria Civica d'Arte Moderna, Torino, Italy, 1970. Curated and with essay by Germano Celant. Artists include Sol LeWitt, Giuseppe Penone, Fred Sandback, Aligherio Boetti, Christo, Piero Manzoni, Yves Klein, Joseph Beuys, On Kawara, among many others. Profusely illustrated in black-and-white. Includes section of statements by the artists involved and bibliography. Text in Italian.