Bridget Riley has produced some of the most visually arresting art of the past ... her eye- and mind-bending black and white paintings, which came to be defined as op-art (optical art), a visual ...

Red, Green, and Blue Twisted Curves, 1979. The “spectator who looks at my work is part of the work itself,” Riley has said. Collection of the artist. ©Bridget ...

Bridget Riley is a British artist known for her singular Op Art paintings. Melding clean lines, color arrangements, and geometric precision she creates optically compelling visual effects, as seen in ...