In the mid-sixties and early seventies, there was the (blank) is . . . cliché, summed up best by the insipid Love is . . . cartoon strip. For some reason I blame Peanuts for this. Anyway, here’s the back cover. We learn that Peter Max is the famous champion of Love, Peace and Beauty, and his planes – designed in aerodynamic Love colors! – will help you join "the Air-borne Generation."

You have to be hippie-thick to think there's such a thing as aerodynamic colors.