Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Attractive, quality book if not totally comprehensive.

This book provides a good overview of all topics related to Mastiffs. A great book for someone interested in the general history, care requirements, and peculiarities of the mastiff breed. The photos are nice, and this is a fun book to pick up and browse through. Lots of quality information can be found within, yet the breadth of information prevents a truly comprehensive approach. Still, a good value overall!