In terms of overall impact, I've always considered Muhammad Ali as the equal of Martin Luther King.
He's certainly at the centre of boxing literature. George Plimpton, Norman Mailer, Budd Schulberg etc., it seemed during the 70s, everybody took a turn. Muhammad Ali is 65 today.
There will never be another like him.
At any rate, today especially, have a look at this.
And rent or buy this.
Posted by Dave