Exhibition catalogue published in conjunction with show held at the Museo Civico, Bologna, Italy, January 31 - February 28, 1970. Essays by Renato Barilli, Maurizio Calvesi, and Tommaso Trini. Artists in the Biennale include Giovanni Anselmo, Vasco Bendini, Alighiero Boetti, Carlo Bonfa', Pierpaolo Calzolari, Mario Ceroli, Claudio Cintoli, Gianni Colombo, Gino de Dominicis, Giuseppe del Franco, Lucio del Pezzo, Beppe Devalle, Antonio Dias, Luciano Fabro, Carlo Gajani, Jannis Kounellis, Gino Marotta, Livio Marzot, Eliseo Mattiacci, Mario Merz, Marisa Merz, Maurizio Mochetti, Mario Nanni, Ugo Nespolo, Giulio Paolini, Luca Patella, Giuseppe Penone, Michelangelo Pistoletto, Concetto Pozzati, Emilio Prini, Gianni Ruffi, Gianni Emilio Simonetti, Giuseppe Uncini, and Zorio Gilberto. Includes artists' biographies and exhibition histories. Illustrated in black-and-white. Text in Italian.