Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Not worth my time or money ...

Volk is a case of a PhD who may be intelligent yet lacks the ability to write effectively. I learned very little from this book, and when one does come upon some intriguing information his writing style and thought sequences are so convoluted that the entire text is rendered useless. I couldn't even finish the last chapter due to sheer boredom...