In just fifteen years, Hipgnosis (Storm Thorgerson, Aubrey Po Powell and Peter Christopherson) established themselves as the most important design collective in music history. Their innovative cover art defines the albums of the biggest names of the late 1960s, 70s and early 80s: AC/DC, Black Sabbath, Peter Gabriel, The Police, Genesis, Led Zeppelin, Pink Floyd, T. Rex, Wings, Yes and XTC, to name just a few. Their iconic designs including Pink Floyd's The Dark Side of the Moon and Led Zeppel...