Robert Hobbs, art historian and curator, and writes extensively on modern and postmodern art, including Robert Smithson (at the Whitney and Venice Biennale), Robert Motherwell (presenting his first European retrospective), Lee Krasner (LACMA and the Brooklyn Museum), and Kara Walker (at the São Paulo Biennale). Phyllis Tuchman, former AICA-US president, art historian, and critic, appears regularly in Art in America, Artnet, the Smithsonian and Bloomberg News. She has published monographs on George Segal, Dale Chihuly, Anthony Caro, and Nancy Graves, among other artists, and has written extensively on Picasso, Matisse, impressionism, and minimalism.