Jean-Pierre Vasarely, better known as Jean-Pierre Yvaral od just Yvaral, was a French artist working in the fields of op-art and kinetic art from 1954 onwards.
image: Yvaral - 50 Shades of Blue, ca. 1970 (detail). Serigraph. 29 1/2 × 29
1/2 in. 74.9 × 74.9 cm. Edition of 200. This is part of a limited edition set. Photo