Everything you need to understand or teach Dog Man by Dav Pilkey.
Dav Pilkey's Dog Man: A Tale of Two Kitties and Dog Man: Cat Kid are two graphic novels about a police officer with the head of a dog and the body of a man. Dog Man battles all sorts of villains and works to solve mysteries. Pilkey writes the novels as if two young boys, George and Harold, are doing the writing. The novel's main themes are good always triumphs, the role of villains, and the importance of friendship.