Didn't see a recommendations thread, but please link if there already has been one.
There seems to be a general lack of hockey books around (compared to other sports), but it would be nice to hear of any gems that you've read.
So far, I've only finished Theo Fleury - Playing With Fire; an insightful and honest account of the man; a truly troubled guy who went through some pretty hard times. Worth the read.
Current getting through both The Greatest Stories Ever Told and Bob Probert - Tough Guy. The former has some great short stories and articles (particularly liked the one about Richter). The latter, as you might imagine with a guy like Probert, is similar in vein to Theo's, although I find it interesting how little he goes into some pretty important life situations. Perhaps he just didn't want to talk about them.
I also picked up Patrick Roy's book on the cheap due to Borders going into liquidation, so I have that up on the chopping block.
Lastly, I picked up this beauty off eBay last year:
It doesn't really give any groundbreaking advice (I used to play NHL '94 in leagues), but it's a really nice book to flick through. Easily my favourite sports game of all time.