Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't bother

Having read a few other T-SQL books, I can honestly say this is the worst one of the bunch. It's poorly written and the techniques it shows are not advanced in the least. You get the impression that these guys do not actually work in the "trenches" they mention so often. This is in the top ten of the worst computer books I've ever had the misfortune to buy.