Which book to buy?

[alexl]

Hey kids. I'm new to these parts. I'm from Toronto but now i'm living in London, England, and there no structured games! I'm forced to play pot limit at the casino. I'm relativaly new and have read Ken Warren's book and Hold'em poker for advanced players by malmuth/sklansky. I don't see many options for a book on Pot limit. Which one is really going to tighten up my Pot limit?? Thanks...