What I liked best was the age appropriate medical descriptions. Peanut informs Dr. Kitty that "The first signs of shock are a quick pulse and cold skin", and a detailed description of cleaning and dressing a wound on Clover the bunny's ear is just the right amount of information for young doctors to memorize and try out on their own stuffed animals. There is even a list of what Dr. Kitty has in her medical bag, and how the items are used. The language is straight forward and matter-of-fact. What a great book to give a budding medical professional!
It's also nice that Dr. Kitty and Peanut are respectful of each other, and Posy's reasons for faking a limp are good ones that will serve as a cautionary tale.
Readers who have graduated from I Can Read and Step Into Reading Books and who enjoy animal tales will find that Dr. Kitty to be just what the doctor ordered!