I have read and re-read this book a few times now. After having spent a lot of time and money reading puppy books and watching training videos; I still find myself returning to this book over-and-over again. I find the information in this book to be well organized, and easy-to-follow. While this book covers a wide subject area, each subject is presented with enough depth to give you the tools and terms you need to research further. For me, this book was an excellent starting point for reading about puppy training!