La Plata: Diagonal Cero, 1970. First edition. Square 8vo, 17 unbound plates (one of which folds) housed in a die-cut folding slipcase. Association copy, warmly inscribed by Vigo to fellow artist Ulises Carrión and dated in 1978.
Artists' book by Vigo in the form of a textual and visual essay on concrete and visual poetry, accompanied by work by Lara Limos, Moacy Cirne, Wladimir Dias Pino, Décio Pignatari, Augusto de Campos, Neide de Sá, Alvaro de Sá, Jean-Claude Moineau and Meta-Art, Claude Portal, Yves Charnay, Goerges Aperghis, Dennis Williams, Grupo ZAJ, José Luis Castillejo, Gérard Rocher, Andy Suknasky, Julien Blaine, Jochen Gerz, and Alain Arias-Misson.
First and last plate with some minor offsetting from the black slipcase, else near fine. The slipcase is toned and a case a closed year along the bottom margin of the the folded black sheet, very good. Item #29688