Some good reccomendations there, thanks.
I watched 'The Four kings' on YouTube this morning actually and enjoyed it so the book must be worth a read. Ordered 'Muhammad Ali: His Life and Times' from Amazon on Friday as well.
I've read a lot of them, and my personal favorites are
Sweet Science by A.J. Leibling
Black lights by Thomas Hauser
Corner Men by Ronald K. Fried
Serenity by Ralph Wiley (except the Tyson section)
Best boxing book I've read:
http://www.abebooks.com/blog/wp-content/uploads/2010/04/four-kings.jpg
Four Kings by George Kimball
Also Hands of Stone: Life and Legend of Roberto Duran by Christian Giudice is good.
http://resources2.deepdiscount.com/resources/deepdiscount/images/products/processed/305/9781903854754.zoom.1.jpg
And
Muhammad Ali: His Life and Times By Thomas Hauser
http://cache0.bdcdn.net/assets/images/book/medium/9781/8610/9781861057389.jpg