One Gorilla is one of those innocent little books that you don't expect to have a big message. Nevertheless, it does. After all the wonderful illustrations depicting various primates, one reaches the final three pages. The author and illustrator wonderfully depicts that we all are, in fact, part of the animal world, that we are all related. "All primates. All one family. All my family...and yours!"
My kids loved it, and so did I.