Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Not mathematical enough.

Very disappointing, if you're looking for a mathematically oriented book. In fact it avoids math like the plague. It's therefore ideally suited to: (a) project managers who don't really want to do any serious work themselves, and (b) people who want to drop words at cocktail parties to impress people. Totally unsuited to the serious researcher.