Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Logical with a practitioner's perspective

The author does an excellent job of presenting the information from a practitioner's standpoint instead of a purely academic standpoint. He provides many insightful examples and tips on when to use particular features and why. From a developer's point of view, this is what I want in a book, I can read the documentation if I want a simple list of features.I highly recommend this book.