When English painter Bridget Riley, one of the foremost exponents of Op Art and geometric abstraction, first began to paint the black and white works for which she is best known, they were said to induce sensation in viewers as varied as seasick and sky diving.
"I couldn't get near what I wanted through seeing, recognizing and recreating, so I stood the problem on its head. I started studying squares, rectangles, triangles and the sensations they give rise to...It is untrue that my work depends on any literary impulse or has any illustrative intention. The marks on canvas are sole and essential agents in a series of relationships which form the structure of the painting." - Bridget Riley