Printed books existed nearly 600 years before Gutenberg

Printed books existed nearly 600 years before Gutenberg’s Bible
It is a little-known but undisputed historical fact that Johannes Gutenberg did not invent the printing press. Though the Gutenberg Bible was certainly the first mass produced printed work, it was hardly the first printed book — nor was it even the first made using movable type. Chinese and Korean inventors had been producing printed books for centuries before Gutenberg was born.