Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do not waste your money

Great hype, but the guts of this book could be compacted into 3-4 pages. It's amazing that someone can inject a blatant liberal slant into what should be an entirely apolitical subject. The author strays from the subject, makes rudimentary points by droning on with silly examples. Its called fluff and filler. This is one of the few books I have read in my life in which I took away vitually nothing. You would learn more taking the money and using it to buy a video on various strategies for changing light bulbs.