Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: A poorly executed book

The problem with any book by Eric Schiller is that he seems to bite off far more than he can chew or he presents us with superficial stuff. He also seems to have zero qualms about rehashing editing hatchet jobs on books that have been previously written by other authors (see Schiller's book on Kasparov for an example). And here, as others have observed, he quite poorly executes what could have been a good idea -- a repertoire based on the Tarrasch Defense. It's all very frustrating for those of us who wish our chess books to be to be labors of love rather than hurried projects sent to the printing press before they are ready. The Tarrasch Defense deserves far better treatment than what Schiller offers us. I don't recommend this book to anyone. For a far better repertoire book based on the Tarrasch Defense, get Jacob Aagard's "Meeting 1d4", published in 2002.