Books to read

[jesse8888]

I've done some research but respect the opinions of several posters here more than anything I'll read elsewhere. Therefore, I ask:

I currently play live 6/12 in Northern California. I think I am a winning player. I have read SSHE and Lee Jones "Winning Low Limit Holdem", and my game is based on them. My goal is to move up to the 15/30 - 20/40 games around these parts.

What two books should I read and why?