A clean, architectural solution for keeping your prized volumes upright and organized. The Cal Bookend is comprised of two steel rods, which elegantly bend across each other and are locked into place by a single bolt.  Named for its resemblance to the caltrop—a rudimentary antipersonnel weapon—but in this case a tool of warfare has been redeployed as an object whose purpose is to literally uphold knowledge. Learn more about the story behind the Cal Bookend here.