Bologna: Edizioni alfa, 1970
20 x 20 cm, unpaginated. (160pp approx) and card covers. Exhibition catalogue of this important exhibition which showcased the arte povera artists including Giovanni Anselmo, Alighiero Boetti, Pierpaolo Calzolari, Claudio Cintoli, Mario Ceroli, Gianni Colombo, Gino De Dominicis, Lucio Del Pezzo, Gino Marotta, Jannis Kounellis, Luciano Fabro, Eliseo Mattiacci, Mario Merz, Marisa Merz, Maurizio Mochetti, Luca Patella, Giuseppe Penone, Giulio Paolini, Michelangelo Pistoletto, Emilio Prini, Gianni Emilio Simonetti, Gilberto Zorio and others. B/w reproductions of works throughout with most artists getting 4pp of biography and full page images of works. Essays by the editors in Italian. Covers are a bit browned and there is a former ex libris sticker internally on the inside cover but this is a scarce book and a good survey of the mature work of the artists promoted by Celant at the end of the 60s. Not often encountered.