Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mediocre attempt for a difficult subject.

This book leaves readers with tons of questions. In some instances, information vital to understanding of the material is left out. The diagrams, however, are very helpful. Authors use confusing lingo which make a visual picture very unclear. Overall, the book lacks the technicality required for a good textbook. In-depth knowledge of the topics presented in this text requires the use of other resources.