Instruct: Classify an Amazon review as either positive or negative.
Query: A great advanced T-SQL book

I have read all the other T-SQL books and this one is by far the best of them.It is the only truly advanced book on T-SQL that I've seen (I have the O'Reilly and Apress books - this one is much better). What I like the most is the way the author goes to such pains to explain everything in detail. He has obviously been in the trenches a time or two. Add to this 600+ code samples and you have an expert-level book that every T-SQL programmer should read.