Instruct: Classify an Amazon review into positive or negative sentiment.
Query: THIS is a best-seller ???

Although the publisher prints several flattering reviews on the book's cover (including several comparisons to DaVinci Code and other such popular "code" or "puzzle" stories), it's hard to imagine how someone could make such comparisons. A puzzle needs at least two characterists to be interesting: solving it must be worthwhile (e.g., it unlocks a mystery or offers some reward) and the process of solving it must be stimulating. The code chased by the characters in this book [buried within an obscure and impersonal book in history] has neither of these features.