Here, for the first time, is "the definitive story of Pink Floyd-from the inside out. With 116 million albums sold worldwide and 25 years on the pop charts to their credit. Pink Floyd one of the most successful rock groups in history, and yet their story-until now-is one of the least known. The only consistent member of the band through its entire 40-year history. Nick Mason has witnessed every twist, turn, and sommersault from behind his drum kit.