Mazzoleni Art gallery has 10 of the artists works for sale in “Einstein in the Sky with Diamonds,” through December 16—including two paintings which have been part of a decades-long dispute. Hungarian ...

“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, ...

The raid marks the latest chapter in a long legal battle between Vasarely’s heirs over ownership of his work. A painting is carried to a truck as French authorities and members of the FBI conduct a ...

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, ...