A Very Rare Book Opens 6 Different Ways, Reveals 6 Different Books

Book binding has seen many variations, from the iconic Penguin paperbacks to highly unusual examples like this from late 16th century Germany. It’s a variation on the dos-à-dos binding format (from the French meaning “back-to-back”). Here however, the book opens six different directions, each way revealing a different book.

via A Very Rare Book Opens 6 Different Ways, Reveals 6 Different Books.