· Robert A. Day Professor and Chair of Critical Studies, University of Southern California2014–
· Professor and Grierson Chair in Visual Culture, McGill University2010–2014
· Professor and Pilkington Chair, University of Manchester2003–2010
· Professor of Twentieth-Century Art and Theory, University of California, Riverside1991–2003
· Instructor and Adviser, Art Center College of Design1990–1991
· Ph.D., Art History, University of California, Los Angeles1987–1991
· M.A., Art History, University of Pennsylvania1985–1987
· A.B., Magna Cum Laude in Art History, Harvard University1979–1983