I haven't got time to write much - let's just say that this book is absolutely brilliant and is easily the best 'astronomy' in my collection. It is easily the best lunar observation book I've ever seen anywhere for this price and my colleagues in the astronomy society agree with me (I saw their copies and then immediately went to get one of my own). If you want to look and learn about the moon then this is the book to have in your pocket (I mainly use 20 by 80 binoculars so this book is perfect for me and for people with slightly larger, beginners scopes).