I'm not only the greatest; I'm the double greatest.-- Muhammad Ali in 1962 to the NY Times.The Louisville Lip. Cassius Clay. The Greatest.Muhammad Ali may be known by more than one name, but his accomplishments, both inside and out of the boxing ring, have earned him a singular place in history as one of the most inspiring figures of the twentieth century. In his riveting portrayal of Ali's spirit and courage, award-winning author Walter Dean Myers also exposes the hazards of boxing -- the sport Ali loved, but which ultimately damaged him and many other greats beyond repair. Through the story of Ali's childhood, his rise as a champion, his politics, and his battle against Parkinson's disease, readers will come to know the man behind the brash public persona -- the man whose talent and legacy will stir and inspire a new generation of fans.