Robert Rauschenberg (b. 1925) began to investigate the boundaries between painting and sculpture in the 1950s, working with a variety of found objects in his Combine paintings and freestanding Combines. Later, in his Cardboard series (1971--72), he confined himself to the use of cardboard boxes, eliminating virtually all imagery, reducing the palette to a near monochrome, and commenting in subtle ways on the materialism and disposability of modern life. This book is the first to focus exclusively on Rauschenberg's rarely seen Cardboards, along with related works from his Made...