Thomas Hoepker, a member of Magnum Photos, had the opportunity to spend time with Cassius Clay aka Muhammad Ali and take photographs – in 1960, when he won the a gold medal at the Rome Olympics, in 1966, when Ali was world heavyweight champion already, in 1970, when he restarted his career and prepared himself for the "Fight of the Century" against Joe Frazier and years later, already weakened by Parkinson´s disease. Many of these pictures have become photographic icons. But many photographs in this book are lesser known or have been unpublished until now. They show Ali in private moments and public appearances outside of the ring.