From failed Abstract Expressionist to pioneering Pop Art hero, Roy Lichtenstein revolutionized the art world with his big, bold, brash cartoon images of American culture. Even before Andy Warhol ...

A once-in-a-generation collection of Roy Lichtenstein’s art is heading to auction in May, with Sotheby’s expecting the vibrant selection to pull in more than $35 million (€30.8 million). The sale will ...