Just finished reading Cards by Maxwell.

[MicroBob]

if exploring your tilt-ish tendencies are of interest to you then you may want to consider:

Inside the Poker Mind - Feeney

Psychology of Poker - Schoonmaker

Zen and the Art of Poker - Phillips

(I have many problems with his 'playing the rush' ideas...but if you can ignore those and focus on the ideas about patience and discipline it could be worthwhile for you)

Ace on the River - Greenstein

(he explores the tendencies some players have to blow through their bankroll on stupid things...and other discipline issues like that)