But what makes this book so popular? I guess it's partly because all kids can identify with misbehaving and getting in trouble but having their parents love them anyway, and with using their imaginations. Another factor is the great illustrations.
In my experience, the majority of the picture books kids love are either written and illustrated by the same person or by an author/illustrator team that often works together. Of course there are exceptions, but this is the case at least half the time.