Pop Art was an art movement of the late 1950s-1960s that used imagery from popular culture and everyday life. Pop artists blurred the lines between fine art and commercial art by using images and objects such as advertisements, consumer goods, celebrities and comic strips in their work. Notable Pop artists included Andy Warhol, Roy Lichtenstein, and Wayne Thiebaud. Warhol used techniques like photographic silkscreening and repetition to critique cultural ideas through works featuring products like Brillo boxes and celebrities like Marilyn Monroe.