Lyle Massey is Associate Professor of Art History and Visual Studies at the University of California, Irvine. She is the author of Picturing Space, Displacing Bodies: Anamorphosis in Early Modern Theories of Perspective and the editor of The Treatise on Perspective: Published and Unpublished. James Nisbet is Associate Professor of Art History and Visual Studies at the University of California, Irvine, and the author of Ecologies, Environments, and Energy Systems in Art of the 1960s and 1970s.