As far as I know he has 3.
He has the Championship Pot Limit No Limit Hold'em book which is the best book on poker that I have ever read. Or rather the most influencial to me anyways.
TJ also has a Championship Limit Hold'em book as well. It's pretty good but I like his NL book alot more then the limit one.
He also has a Final Table Stratigies book which I have never seen or read but I'm sure it good.
I think you can buy these books here:
poker-books-page36.html and I'm sure Ice would appriciate it. See the book up in the right hand corner that says Tom McEvoy for the author? That's TJ's book, the co-authored it. I don't see the other ones there but like I said the one that is for sale, the NL PL Hold'em book is REALLY good.