Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Decent for beginners, but not for experts

I could see this book being helpful to the brand new beginner, but I don't think it's very useful for anyone else. I'm kind of in the middle somewhere between newbie and wizard (about 6 mos working with Sql Server) and didn't find much in the book to interest me. But it's been several months since I started with the product - maybe I've forgotten what it was really like. My advice: if you're a beginner, consider this book. If not, don't.