Instruct: Classify the given review as either positive or negative.
Query: Excellent and Affordable

This is an excellent book and affordable. Some other reference books are very expensive and don't have the great photos and data presentations that this book has (I still highly recommend the others, but they are not cheap). This book saves a lot of time and makes it easy to show other people exactly what you are trying to say, and they will be impressed with the quality of this publication. Excellent book in its own right and can easily double as a "coffee table book" and a great conversation starter.