This is an example of a small folded book. Somewhere I learned how to fold a piece of rectangular into an eight page book. Weirdly, they same folds, with slightly different cuts can be turned into a box. See below
Below are some pictures of the small books we made. Some were folded, some where held together with little brass fasteners/rivets. I tried to hide the staplers so they would be forced to do something a bit different. I figured they had stapled paper together before and called it book.
Below are some pictures of boxes that use basically the same fold as the book above. It a fun project. The older students make stuff with the boxes in a modular fashion and the young kids learn to fold paper in half accurately.