the 3 best auto-biographies i have read are..
1. Ali by Thomas Hauser

2. Money myth and betrayal , story of tyson's life right up to he got jailed

2. Barry McGuigan , some great stuff especialy when he got barney eastwood to write a $250k note to him saying that if he lost to cruz eastwood would pay him this....this is because barry was injured quite bad and didint want to fight...barry brother guarded the note with his life