for biography, I'll take Overtime: The Legend of Guy Lafleur
I probably have more than a hundred hockey books on my shelf at home. And this one is the best. Yes, it's easy to say that because it's my favourite player. But the writing is honest. Lafleur holds nothing back. His flaws are there for all to see as well as his successes. If you haven't read this one, try to find a copy.