Led Zeppelin were 'the last great band of the sixties; the first great band of the seventies'; they rose, somewhat unpromisingly, from the ashes of the Yardbirds to become one of the biggest-selling rock bands of all time. Mick Wall, respected rock writer and former confidant of both Page and Plant, unflinchingly tells the story of the band that wrote the rulebook for on-the-road excess.