The 1960s was famously the decade of sex, drugs and rock'n'roll. It was also a decade of revolution and counter-revolution, of the Cuban missile crisis, of the American intervention in Vietnam, of economic booms and the beginning of consumerism (and the rebellion against it). It was a decade in which the avantgarde came out of the closet and into the street, expressing itself on album covers and posters as much as in galleries. And it was a decade...