Mike Tyson, philosopher, Broadway headliner, fighter, felon, and onetime heavyweight champion of the world, talks about his life in and out of the ring. Bullied as a boy in the poorest neighborhood in Brooklyn, Tyson grew up to become one of the most ferocious boxers of all time—and the youngest heavyweight champion ever. But his brilliance in the ring was often compromised by reckless behavior. He tells his story in his memoir Undisputed Truth, which chronicles his tumultuous highs and lows.