Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not Worth the Time

Bought the book because it had great reviews and looked beneficial. Once I got it I read through the first couple of chapters and did not find it useful at all. I am an engineer and the the basic skills he presents are taught early on in the undergraduate curriculum. Needless to say I was very disappointed. This may be a good book for someone that is in high school to sharpen critical thinking skills.