His first solo exhibition took place in 1982 at the Annina Nosei Gallery in New York’s SoHo. That same year, he participated in Documenta, Kassel. He continued to exhibit widely until his death, since when there have been numerous group and solo exhibitions. Among the latter are the Whitney Museum of American Art, New York (1992), Brooklyn Museum of Art, New York (2005), Shanghai Duolun Museum of Modern Art (2006), Musée d’art moderne de la Ville de Paris (2010), Barbican Centre, London (2017) and Schirn Kunsthalle, Frankfurt (2018), among others. Collections include the Gagosian Gallery, New York; ZKM, Karlsruhe; Museum der Moderne, Salzburg; Vancouver Art Gallery, ”la Caixa”, Barcelona; MOCA, Los Angeles; MoMA. New York; Centre George Pompidou, Paris; and MACBA, Barcelona.
While there are ideas about psychological and emotional developmental processes held within the sculptures I make, the things themselves are actual physical explorations into thinking, feeling, communicating and relating.