Meet Arvo. Now look at his family tree. Meet his cat, Malcolm, and check out Malcolm's family tree, too. Whether people or cats, buildings or books, food or vehicles, there's a category for everything. And in this mesmerizing narrative introduction to taxonomy, readers follow Arvo through his day to learn about the order of the animal kingdom, to his music lesson to help categorize instruments, and across town to classify cloud formations he sees along the way. Neil Packer's detailed illustrations and simple narrative are perfect for readers who itch to classify and find order in their daily lives.