Chief Curator, the Frick Collection New York

Curator, Museum of Contemporary Art, Chicago

Curator in charge of European painting, Fine Arts Museums of San Francisco

Deputy Director of Programs and Chief Curator, Whitney Museum New York

Associate Curator in the Department of Media and Performance Art, MoMA New York

Curator of Art, Andy Warhol Museum, Pittsburgh

Associate Curator, Department of Painting and Sculpture, MoMA, New York

Curator and Associate Director, Technology Initiatives, New Museum New York

Chief Curator, Institute of Contemporary Art, Boston

Writer and Editor New York