this book is very basic and does not really enter into the psychology of the dogs, which is what I was really looking for. It is good on a practical level, and does offer some ways to teach your dog tricks, but does not explain 'why' dogs behave the way they do at times! For me, the owner of a small terier who is overly agressive with other dogs, it was not really helpful. If I were purely looking to teach my dog a few party tricks, it would have been great. I was quite disappointed with the book as it is really short, basic and has not really helped me deal with the behaviour issue!!