Academic readers interested in Latin American and Brazilian art will learn about the contributions of Geraldo de Barros, Franz Weissmann, Ferreira Gullar, Lygia Clark, Luiz Sacilotto, Willys de Castro and Hélio Oiticica to Brazilian constructivism, and will realize that the seven chapters of this book inevitably question the canon of contemporary art. In fact, the contributions of these artists go beyond national borders, since Concretism and Neoconcretism created early versions of interdisciplinary and transdisciplinary art, participatory art, process art, visual poetry, performance, installation art, institutional critique, body art and environmental art, in some cases prior to the United States and Europe.