Instruct: Classify a review as either positive or negative.
Query: Very helpful book

This book is great for anyone who would like to know more about how pro-audio speaker systems are designed, put together, etc. The information was very valuable to me and quite honestly I learned a lot. I got this book last night, and I have already finished reading it. It is written in a very easy to read fashion, and the author is very honest about what he feels.