The author of the book “How to Talk to a Dog,” psychology professor Stanley Coren, based on many years of research in animal behavior, evolutionary biology and personal experience, proves that an ordinary domestic dog can understand human language at the level of a two-year-old child. The author explains the sounds, words, actions and movements with which we can communicate with our pet, and also deciphers the signs that dogs give us. He offers simple tips on how a person can imitate a dog's tongue to talk to it, with drawings illustrating the intricacies of a dog's language. The book gives dog lovers skills that improve relationships with their four-legged friends.