Dense exhibition catalogue published in conjunction with two shows, the first held at the Comune di Milano - Ripartizione Cultura, Castello Sforzesco, Milan, Italy, May 10 - June 11, 1978, and the second at the Comune di Venezia, Assessorato alla Cultura e alle Belle Arti, Galleria d'Arte Moderna Ca' Pesaro, Venice, Italy, June 23 - July 23, 1978. Text by Eckhard Siepmann and introduction by Mario de Micheli. Profusely illustrated in black-and-white. In Italian.