The Codex Gigas (English: Giant Book) is the largest extant medieval manuscript in the world.^[1] It is also known as the Devil’s Bible because of a large illustration of the devil on the inside and the legend surrounding its creation. It is thought to have been created in the early 13th century in the Benedictine monastery of Podlažice in Bohemia (modern Czech Republic). From the Wikepedia page on the Codex. For more you can directly to that page: http://en.wikipedia.org/wiki/Codex_Gigas