I've been working really hard on our wedding invites and came upon these while researching flowers. Xylotheque means 'wood library.' Basically, pieces of wood cut into the shape of books with inscribed binding and set together to give the impression of a row of books. Such wood libraries flourished in the 1800s. What's even cooler is that some were taken a step further and turned into hinged boxes and would hold specimens of dried leaves, flowers, roots, fruits, seeds and twigs. Pretty neat-O.