Instruct: Classify Amazon reviews into positive or negative sentiment
Query: unreadable

Fortunately, I borrowed this from the library before buying. It's so clunkily written I couldn't get past the first few pages -- I don't understand why a publisher would hire someone with such poor communications skills to write a book for beginners. If you really are a beginner, like me, I suggest looking elsewhere -- the one other book I looked at, Michael Hernandez' Database Design for Mere Mortals, was clear, well-organized, and easy to read.