In 1978 he exhibited videotapes in a solo project at the Museum of Modern Art, New York, landscape watercolors at the John Weber Gallery in New York, and a giant installation of walls and photographs. He has continued setting up his Provocation Shows in museums and galleries: at University of Massachusetts, in Bielefeld and Karlsruhe, at Studio Carlo Grossetti, Milano, and in 1984 a three-gallery show in New York (Leo Castelli, John Weber, Susan Caldwell), while at the same time he has exhibited only single families of work in locations such as in Documenta 6 (1977) and the Venice Biennale (US Pavilion) in 1980. His art is represented in many collections of international museums and private institutions.