Artist's book by Mario García Torres. Part of a series published on the occasion of the 2da Trienal Poli/Gráfica de San Juan: América Latina y el Caribe. Text and interviews by García Torres and Willoughby Sharp. Reproduces historical exhibition at Castelli Warehouse organized by Robert Morris, December 4 - 28, 1968. Artists include Giovanni Anselmo, Joseph Beuys, William Bollinger, Rafael Ferrer, Eva Hesse, Stephen Kaltenbach, Bruce Nauman, Alan Saret, Richard Serra, Keith Sonnier and Gilberto Zorio. Includes exhibition checklist.