You might like Left Right The Unknown Political Prisoner (Defiant and Triumphant) Theodore Roszak 1952 Cretan Queen Joseph Konzal 1963–4 Soft Drainpipe - Blue (Cool) Version Claes Oldenburg 1967 Abstract Painting No. 5 Ad Reinhardt 1962 A Wall Divided Vertically into Fifteen Equal Parts, Each with a Different Line Direction and Colour, and All Combinations Sol LeWitt 1970 Wall Explosion II Roy Lichtenstein 1965 Untitled Donald Judd 1980 Six Geometric Figures ( Two) (Wall Drawings) Sol LeWitt 1980–1 Cell (Eyes and Mirrors) Louise Bourgeois 1989–93 The Juniper Tree Joan Jonas 1976, reconstructed 1994 Walls Paper Gordon Matta-Clark 1972 Cybernetic Sculpture: Square Tops Wen-Ying Tsai 1969