Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My "Go To" Book on Astronomy

I own over two dozen astronomy books. When I need a quick review in astronomy basics before I head out with my own telescope or before I teach basic astronomy to a group of Boy Scouts, I always find this book, take it to lunch with me, and get an excellent review in just a few hours. It is well organized, has wonderful photographs, diagrams, and charts. If I had to choose only one book on astronomy, this would be it!