Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Totally Useless

Poorly written, makes no sense. I am a fundamental analysis investor, but I do find some charting to be useful to identify trends, resistance and support, etc. But this book tries to link the stock market to sound waves and any other number of useless correlations. I couldn't even get past the 2nd chapter, and flipping through it made me glad I never bothered. Please don't waste your money, I'm sure there are good resources out there if technical analysis is your thing, like the Bill O'Neil Investors Business Daily stuff. Steer clear of this one.