Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not as informative as I hoped it would be

I assumed this book would be about home automation, but it only briefly touches on that. It is mostly about wiring of distributed audio and video, which I didn't find very interesting.The book does contain some interesting and useful information, but it could probably all be squeezed into about 30 pages.The reader is directed to an an accompanying web site for up-to-date information, but the web site was last updated three years before the latest edition of the book was published.