In Palm Desert, California, Heather James Fine Art reexamines the pioneering achievements of Venezuelan Op Art.

Every month, hundreds of galleries add newly available works by thousands of artists to the Artnet Gallery Network—and every week, we shine a spotlight on one artist or exhibition you should know.

Lines, dots, color shocks: Bridget Riley’s paintings mess with your eyes and the market. Here’s why this Op Art icon is still a must-watch for hype, selfies and serious collectors. art, Bridget Riley, ...

“The whole of my life and work has been and is consecrated to the modern city,” says Victor Vasarely, 59, France’s great academician of op art. “For me, there is nothing more beautiful than New York, ...