In 1949, when she was 18, Bridget Riley began formal art study ... drawings; the outer walls are lined with the abstractions. The earliest geometric abstractions are black-and-white — syncopated ...

(Courtesy of The New Mexico Art League) In an age fraught ... She uses the paper, be it black, white or gray, as part of her drawings. "In a way, it was an expression of OK, after all these ...