In 2010, Chaser became famous for learning the names of more than a thousand objects, going well beyond common nouns like toy, ball, and tree. She proved able to use deductive reasoning to learn new words, much as human toddlers do. Her owner and trainer, retired psychologist John Pilley, has now gone further, teaching her to learn behaviors by imitation and to understand the syntax and semantics of sentences. These accomplishments surpass those documented for any nonhuman animal, from dogs to dolphins to parrots to primates. Pilley’s groundbreaking approach has opened the door to a new understanding of animal intelligence. Yet astonishingly, Chaser isn’t unique. Pilley’s training success is potentially within the reach of any dog lover. Readers will learn how they can incorporate learning into play and more effectively channel their own dogs’ natural drives. Pilley’s work with Chaser offers a new understanding of what’s possible in the relationship between a dog and a human. His story, as heartwarming as it is amazing, will change the way we relate to our canine companions and open a new window into the way animals and humans learn.