In Deed: Certificates of Authenticity in Art

Pierre Bismuth, Daniel Buren, Maria Eichhorn, Urs Fischer, Dan Flavin, Andrea Fraser, Liam Gillick, Hans Haacke, Yves Klein, Joseph Kosuth, Piero Manzoni, Gordon Matta-Clark, Allan Kaprow, Jonathan Monk, Robert Mooris, Yoko Ono, Seth Siegelaub, Raqs Media Collective, Haim Steinbach, Rikrit Tiravanija, Cerith Wyn Evans, Andrea Zittel