The term process art describes a moment of radical experimentation in postwar American sculpture. The book revisits process art in terms of the artists who defined the movement, and suggests a transitional moment when many of its practitioners anticipated the postminimalist art of the 1970s. The book, which accompanies an exhibition, contains an essay by the author on the historical ambiguity surrounding processa art and one by Pamela M. Lee on temporality in the work of the late 1960s. The text features such artists as William Anastasi, Richard Artschwager, Mel Bochner, Agnes Denes, Nancy Grossman, Robert Grosvenor, Marcia Hafif, and Nancy Holt.