The British painter Bridget Riley creates energy with stripes, circles, triangles, and rhomboids, geometries that move like murmurations. Before executing her paintings, she does elaborate studies, sometimes with pencil on graph paper and other times as finished gouaches. Riley’s experiments began in the 1950s with plays on pointillism; in the 60s she moved to her Op art style, using black-and-white patterns to explore the dynamism of seeing. Ninety drawings that inspired her masterpieces are the focus of this exhibition, which begins with her student days in the 1940s and travels to the present. Paintings by Paul Klee, Piet Mondrian, and Georges Seurat, her longtime influences, are part of the show. —Elena Clavarino