If you want to learn about patterns, I recommend taking a look at Bulkowski’s web page. As stated above they are a precursor to a trend change.Some knowledge of Elliot wave theory never hurts either. After reading Trading Chaos (the second edition) my ideas about trading have changed. Currently about to start reading The New Trading for a Living by Dr. Alexander Elder.
I believe both books focus on the psychology of trading. The first one does heavily. Psychology moves the markets.