When it comes to architecture, the interior of a library might not be the first thing that comes to mind. However, with the release of Florence-based photographer Massimo Listri's new book, The World's Most Beautiful Libraries (to be released by TASCHEN on August 30), that's all going to change. Scroll through for a peek at some of the world’s oldest libraries, boasting everything from exquisite spiral staircases to elaborate ceiling paintings.