Kenneth Anger Keith Arnatt Estate Richard Artschwager John Baldessari Estate Bernd & Hilla Becher John Bock Alighiero Boetti Cao Fei George Condo Walter Dahn Hanne Darboven Estate Thomas Demand Philip-Lorca diCorcia Thea Djordjadze Lucy Dodd Robert Elfgen Peter fischli david Weiss Lizzie Fitch / Ryan Trecartin Sylvie Fleury Cyprien Gaillard Gilbert & George Andreas Gursky Jenny Holzer Gary Hume Robert Irwin Donald Judd Axel Kasseböhmer Craig Kauffman Estate Karen Kilimnik Astrid Klein Joseph Kosuth Kraftwerk Barbara Kruger David Lamelas Louise Lawler David Maljkovic Anthony McCall Robert Morris Reinhard Mucha Jean-luc Mylayne Senga Nengudi David Ostrowski Otto Piene Estate Michail Pirgelis Nina Pohl Stephen Prina Bridget Riley Pamela Rosenkranz Sterling Ruby Thomas Ruff Ed Ruscha Analia Saban Gerda Scheepers Thomas Scheibitz Frances Scholz Andreas Schulze Cindy Sherman Stephen Shore Alexandre Singh Frank Stella Robert Therrien Ryan Trecartin Rosemarie Trockel Kaari Upson Marcel Van eeden Kara Walker John Waters Andro Wekua Andrea Zittel