The text considered the oldest book in the world is an untitled Etruscan script of six pages made of beaten gold. The Bulgaria National Museum of History is the custodian of the book.
The oldest printed book in the world is the "Diamond Sutra." The "Diamond Sutra" dates back to 868 and is considered an important Buddhist text. The "Diamond Sutra" is the work of Chinese printers. The "Diamond Sutra" is the product of a woodblock printing process perfected by the Chinese. Although it did not exist in book form, the Old Testament is thought to be about 3,000 years old.