<P> In 1455, Gutenberg completed copies of a beautifully executed folio Bible (Biblia Sacra), with 42 lines on each page . Copies sold for 30 florins each, which was roughly three years' wages for an average clerk . Nonetheless, it was significantly cheaper than a manuscript Bible that could take a single scribe over a year to prepare . After printing, some copies were rubricated or hand - illuminated in the same elegant way as manuscript Bibles from the same period . </P> <P> 48 substantially complete copies are known to survive, including two at the British Library that can be viewed and compared online . The text lacks modern features such as pagination, indentations, and paragraph breaks . </P> <P> An undated 36 - line edition of the Bible was printed, probably in Bamberg in 1458--60, possibly by Gutenberg . A large part of it was shown to have been set from a copy of Gutenberg's Bible, thus disproving earlier speculation that it was the earlier of the two . </P> <P> Gutenberg's early printing process, and what tests he printed with movable type, are not known in great detail . His later Bibles were printed in such a way as to have required large quantities of type, some estimates suggesting as many as 100,000 individual sorts . Setting each page would take, perhaps, half a day, and considering all the work in loading the press, inking the type, pulling the impressions, hanging up the sheets, distributing the type, etc., it is thought that the Gutenberg--Fust shop might have employed as many as 25 craftsmen . </P>

Johann invented movable typeface and so is the father of the printed book