Jack the dog was overweight so the vet told his owner Carson he needed more exercise and to cut down on his food and snacks. Jack was a good dog and did all that the vet said and Carson encouraged him but was eating more while Jack was exercising. When the month was up and they went back to the vet, Jack looked great and had lost the weight but Carson was the one who needed to go on a diet now. Jack reassured him that it was going to be okay and that he would help him because he had a lot of experience. I really liked how the author included Jack's thoughts as well and how she conveyed their loving relationship. ( )