Robert Crumb enters the '70s "On the Crest of a Wave" with the sixth volume in Fantagraphics Books' reprint series. This includes a couple of genuine rarities, as well as all of Crumb's work from Big Ass #1, Zap #4 (including the legendary, much-busted "Joe Blow"), the remarkably offensive Snatch #3 and Jiz #1, Despair — classics all.