Object Sculpture, 1960-1965. Over the past half-century, American artist and critic Robert Morris has been a key figure in the history of minimal, post-minimal and conceptual art. Between 1960 and 195, part of his artistic output consisted of approximately 100 'object sculptures', or as Morris called them at the time, 'process type objects'. These consist of plaques, containers and assisted or simulated readymades of wood. Sculptmetal and lead. This book is the first study to address the object sculptures as a full and complex yet coherent body of work.