This book looks at the world of dogs - explaining what "man's best friend" is really thinking. Photographs record mongrels and purebreeds in action - hunting, eating, sleeping and fighting. Each spread shows a particular behaviour, for example territorial or submissive, what the dog is doing and how to read his/her mannerisms. Special boxes compare the same behaviour in a wolf pack. Dr Bruce Fogle writes a monthly column for "Prima" and "Dog Today" magazines.