Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Immature writing and low information density

Admittedly, I was looking for a book targeted to professional programmers, but this book isn't really even good for a novice. The first section is virtually worthless. The second is better, but web resources are better, more thorough, and the information is much more accessible among the verbiage. I too bought the book based on the breathless 5-star reviews, and was offended at being duped. If you are a professional programmer then spend your time on the W3C or even the Microsoft websites. You'll learn what you need a lot faster and more accurately, not to mention cheaper.