What books should I buy?

[silkyslim]

I have an uncle that is not very good at poker. He likes to play very low buy-in NLHE sit n' go's on pacific, sometimes MTT's, while drinking. Even with these small tourneys he can't keep his bankroll for more than a couple nights. I want to get a book for him so that he can at least break even. He has a little bit of a clue and plays tight, but isnt very advanced. Also, I am a 1/2 player and have SSHE, but want to supplement that.