Currently an independent art historian and curator in Pasadena. Specialization in 20th century modernism, particularly abstract expressionism. Books on Jackson Pollock, Lee Krasner, abstract expressionist criticism and theory, the impact of Mexico on Pollock, Noguchi, Guston and Motherwell. Recent projects include catalog essays for the Getty (on Pollock) and the Denver Art Museum (on Elaine and Bill de Kooning), Abstract Expressionists: The Women, 2023 book coauthored with Joan M. Marter published in London by Hugh Merrell; lectures in Los Angeles, China and the Hague, among others.