This picture book is a humorous introduction to sorting and classifying. Packy the Pack Rat comes home with a cart full of things — a locket, a book, an umbrella, a pinecone, and other random items. After his mother asks him to put it away, Packy begins sorting things with similar characteristics, such as color, shape, or where they were found. Children who like to collect may be inspired to bring order to their own treasures.