With dialogue, thought bubbles, and colored-pencil drawings, Eve Bunting and Michael Rex have created an amusing story about staying healthy. When Carson takes his dog, Jack, to the vet for his annual check-up, he discovers that Jack is overweight. The vet gives Carson a list of things to do to help his dog lose weight. But as Jack diets, exercises, and sheds pounds, Carson snacks and gains weight. By the end of the book, Jack is thin and Carson is fat!