American Diane de Groat writes and illustrates books about celebrations. They feature Gilbert and I was never quite sure what kind of animal he is meant to be. Research on Diane's website reveals that Gilbert is an opossum, something Australians know nothing about. Gilbert does not look like our possum, but he is cute and energetic like our possums. We have some of these books because they fit in with Year 1's unit of enquiry on celebrations and if you can find them in paperback they will be read.
While on the website I saw a non-Gilbert book called Dogs Don't Brush Their Teeth and I had a good giggle while watching the video about the making of it.