Alice Echols has never shied away from controversy. Long before it was fashionable, she wrote searing critiques of antiporn feminism. Her subsequent books about the 1960s are trenchant and provocative, and written with unflinching honesty. Now she maps an alternative history of contemporary American culture, taking on such subjects as hippies, gay/lesbian and women's liberation, disco and the racial politics of music, and artists as diverse as Joni...