"The Gutenberg Bible, the first book printed with movable type, is one of the greatest treasures in the Ransom Center's collections. It was printed at Johann Gutenberg's shop in Mainz, Germany and completed in 1454 or 1455. The Center's Bible was acquired in 1978 and is one of only five complete examples in the United States." - University of Texas at Austin
That to my knowledge is the first book ever printed, what century is that?

they did have block printing previous to this but that is still not actual printing b/c of the process it took to make a book, most stuff was still monks & scrolls