Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Some usefull information but also a lot of fluff

I purchased this book after a very careful review of the contents and reading several online reviews. While there was a little bit of information that I found useful, it wasn't enough to justify the price of this purchase. You can read most of what this book tries to teach for free in about 4-5 minutes if you know the right websites to visit.