David Bowie said that the work of Derek Boshier “cascades over the decades and is utterly real and convincing.” At age 83, Boshier is at once a living legend and an unsung hero of postwar British art.

A working-class kid from Portsmouth on track to take up the trade of butchery, Boshier got himself into the Royal College of Art at just the right time, becoming, along with his studio-mate, David Hockney, and Peter Blake, one of the avatars of British Pop art. His 1961 Special K—an eye-grabbing riff on the familiar cereal box—made a splash around the same time Hockney was doing his Typhoo tea, Ed Ruscha his Sun-Maid raisins, and Andy Warhol his Campbell’s soup.