[mindflayer]

only 3 recommendations;

Hold em Poker for Advanced player Sklansky,Malmuth
Winning Low limit hold em Jones
Theory of Poker Sklansky

If you told me that you never read a poker book before I would tell you to get TOP FIRST. Now that you tell me you are already in there mixing it up at 1-2. if you are playing in a REAL CASINO live or are going to stay at .50/1.. My immediate recommendation for a studious player is WLLH. The book best describes live play at 4-8 or .5-1 on line (loose play). Once you get to 1-2 you find more grinders bonus whoring and I would switch my choice to
HEPFAP.

Weighing the Odds in Hold'em by Yao; very good book but too advanced for a micro player, save this for your 6th book or when you hit 3-6
Psychology of Poker by Schoonmaker You need technical texts first.. book 8
Inside the Poker Mind by Feeney same as before book #7
and Real Poker II by Cooke. sorry never read it, dont own a copy.