I recently tweeted that I thought it was a good idea to weave in some books on general psychology amongst the Super Systems of the world. At the time I was reading Brain Rules, by John Medina. It was a decent read, but more to do with the biology of how the brain works than how the mind thinks--which is what I was really going for.
My current read is Blink: The Power of Thinking Without Thinking by Malcolm Gladwell. It is a book on the quick decisions our subconscious makes and how we come to them. It actually opens with a study in gambling, but I feel some of the following studies can be better applied to poker. The book as a whole gives more credit to the initial "feeling" that your opponent is bluffing. I may go into it deeper in a future post.
This book led me to another tip. Next time you are playing a home game, set up a camcorder to record yourself. Not your opponents, not your hole cards, just you. You will need to leave it on long enough so that you forget it's on and play hands that range from a monster to a stone-cold bluff. Just like in football, you can review the game film and find your weaknesses. Does your body language give anything away? I haven't tried this yet, but i imagine that it would be the best way to nail down and fix your own tells.
Lastly, I'd like to comment on a comment from my previous post. "Lucky Straights" disagrees with poker being a game involving chance. She is looking at macro-poker, and while it is true that the level of your skill is shown in the long-haul, we can't forget about the game-by-game. You need to understand that if you completely outplay your opponent, that doesn't mean you win the hand, it likely means that you only have a 10% to 30% better chance of winning the hand. Chance matters in micro-poker and if you can't come to terms with that you will either be on tilt regularly or correct your play incorrectly.