A little elephant wonders what he can do with a plain cardboard box. He comes up with all sorts of ideas, transforming the object into a hat, a container for toys, and a hide-and-seek haven. Finally, he decides to make a book box, and the rest of the story provides insight into the limitless possibilities of such a creation. Single- and double-page paintings show the elephant and his small frog friend enjoying the contents of the book box from breakfast to the bathroom to bedtime. The soft illustrations, done in egg tempera, oil pastels, and ink, lend occasional humor to the simple, quiet text. The last page provides instructions for making a book box.