(b London, April 25, 1931).
English painter and printmaker. She studied in London at Goldsmiths College (1949–52) and the Royal College of Art (1952–5). From 1958 to 1959 she worked in an advertising agency while painting in a pointillist technique. She was encouraged in this by her teacher, the painter Maurice de Sausmarez (d 1970), who directed her to study the art of Seurat. Her interest lay in the energy and colour vibrations radiated by objects, seen in Pink Landscape (1960; London, priv. col., see 1978 exh. cat., no. 3), which depicts the violent colour vibrations given off by an Italian landscape in intense heat. She later conveyed a similar effect of heat on landscape, from shale on a French mountain, in Static 3 (1966; U. Sydney, Power Gal. Contemp. A.), composed of 625 tiny ovals.
After her experiments with pointillism Riley turned to colour field painting (...