Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Repetitive, sloppy

It's 300 pages; should have been 150. Author starts repeating himself by the third chapter. I did find it useful, but it is frustratingly sloppy. For instance, after taking one of the lengthy questionnaires I discovered that of the 10 personality styles I fit the "schizoid" style most closely. Yikes. I was dying to know what that meant, but the descriptions of the 10 styles on pg. 61 end after the seventh style.