Jeux de mains by Stephen Ellcock and Cécile Poimboeuf-Koizumi

A collection of hand imagery from found photgraphs, artists' works, and ancient relics. To find out what the image is, you have to use your own hands—the credits are hidden within the French-folded pages. By carefully pressing the folded crease at the outer edge of the page, the page balloons open, revealing credits within.