John Fust, of Mentz, was the first to perceive the losses suffered by scholars through the scarcity of books. He labored diligently to invent some new method of multiplying them, so that they could be furnished to readers at reduced and reasonable prices. High Heaven, kindly favoring his sincere prayers and his most laudable intention, revealed to this excellent man the most approved form and mainstay of his invention. In the beginning, he cut the letters of the alphabet for children, on a block of wood, in high relief. With much loss of time and labor, he waited for the invention of a more suitable ink; for writing ink blotted and made the printed letters unintelligible. He experimented with soot from a candle, with which he was able to print, but the impression would not adhere to the paper. At last he invented an ink which was black, adhesive and permanent. Then he began to print on a press and to publish little books for children, which everybody bought, for the price was trivial, and buyers praised the printer. Fust was stimulated to attempt larger work, and he thereupon printed the _Donatus_ in exactly the same manner. But the engraved pages of this book, cut out of the solid block, displayed many imperfect letters, and many copies were worthless. It then occurred to the inventor, at the right time, that he might print books with separate types, and that it was not at all necessary that the letters should always be cut on solid blocks. Whereupon he cut up the wood blocks, and saving all the types that had escaped injury, he made new combinations with them. This is the true origin of the composition of movable types. This new method of making types called for a great expenditure of time and labor; it delayed the work, hindered the development of the new art, and made many miserable difficulties for the inventor.