You might like Left Right Lesson I John Walker 1968 Random Illusion No. 4 Peter Phillips 1968 Study John Walker 1965 Painting Richard Smith 1958 Painting Robyn Denny 1962 The Entertainment Machine Peter Phillips 1961 Painting Manolo Millares 1964 Labyrinth III John Walker 1979–80 Other Cloud Painting Jennifer Durrant 1978 Sweet Pea Painting Jennifer Durrant 1978–9 Black Painting William Scott 1958 Hartgrove Painting No. 2 Ian McKeever 1992–3