Drawn from the Coleccion Patricia Phelps de Cisneros, the world's leading col-lection of 20th-century Latin American art, this volume showcases works by such major artists as Juan Mele, Sergio de Camargo, Lygia Clark, Milton Dacosta, Helio Oiticica, Lygia Pape, and Alejandro Otero. Accompaning an exhibition at the Royal Academy of Arts, Radical Geometry looks at how, from the 1930s through the 1970s, distinct artistic movements emerged in Montevideo, Buenos Aires, Sao Paulo, Rio de Janeiro, and Caracas, innovative forms of expression that reflected the continent's new optimism. Focusing on the impact of such artists as Albers, Mondrian, Malevich, and Calder, all of whom influenced the Latin American Abstract Expressionists, the book explores the ways in which artists captured this positive spirit. Gabriel Perez-Barriero is director of the Coleccion Patricia Phelps de Cisneros. Amalia Maria Garcia is an art historian and writer. Isobel Whitelegg is curator of public programs at Nottingham Contemporary. Sara Meadows is project manager at Coleccion Patricia Phelps de Cisneros. Adrian Locke is curator of the exhibition at the Royal Academy of Arts. Gabriel Pérez-Barriero is director of the Colección Patricia Phelps de Cisneros. Amalia María García is an art historian and writer. Isobel Whitelegg is curator of public programs at Nottingham Contemporary. Sara Meadows is project manager at Colección Patricia Phelps de Cisneros. Adrian Locke is curator of the exhibition at the Royal Academy of Arts.