Nik Cohn began to write this book in the late 1960s with a simple purpose: to catch the feel, the pulse of Rock.Nobody had written a serious book on the subject before, and there were no reference books or research to refer to.The result is an unruly, thrilling and definitive history of an era, from Bill Haley to Jimi Hendrix, full of guts, flash, energy and speed.In vividly describing the music and cutting through the hype, Nik Cohn engendered and perfected a new form: rock criticism.