Claire Lehmann

During a career spanning half a century, Ileana Sonnabend helped shape the course of postwar art in Europe and America. Both a gallerist and a noted collector, Sonnabend promoted some of the most significant art movements of her time. Artists as varied as Vito Acconci, Mel Bochner, Gilbert & George, Jeff Koons, Jannis Kounellis, Mario Merz, Robert Morris, Claes Oldenburg,...