Riley was born in Norwood, London, the daughter of a businessman. She studied at Goldsmiths' College from 1949 to 1952, and at the Royal College of Art from 1952 to 1955. She began painting figure subjects in a semi-impressionist manner, then changed to pointillism around 1958, mainly producing landscapes. In 1960 she evolved a style in which she explored the dynamic potentialities of optical phenomena. These so-called 'Op-art' pieces produce a disorienting physical effect on the eye.
Artworks
