Otto Piene & Heinz Mack. MIT, 1973. Clipped jacket. Collects in one volume the three publications created by the artists’ collaborative, Group Zero, between 1958-61, which documented the birth of environmental and elemental art. Includes works by Fontana, Klein, Tinguely, Mavignier, Arman, Bury, etc. Text in German with English/French translation of introduction.