Zell's earliest rival at Cologne was Arnold ther Hoernen, who printed from 1470 to 1482. He may very likely have been self-taught, for his early work is very uneven, but he developed into an excellent craftsman. He is the first notable example of a printer getting into touch with a contemporary author, and regularly printing all his works, the author in this case being Werner Rolewinck, a Carthusian of Cologne, who wrote sermons and historical works, including the _Fasciculus Temporum_, an epitome of history, which found much favour all over Europe. Ther Hoernen used to be credited with the honour of having printed the first book with a titlepage, the _Sermo ad populum predicabilis In festo presentacionis Beatissime Marie semper virginis_ of 1470. Schoeffer, however, had preceded him by some seven years by devoting a separate page to the title of each of his editions of a Bull of Pius II (see p. 93), and as neither printer continued the practice these isolated instances must be taken as accidental. In the same book, ther Hoernen for the first time placed printed numbers on the leaves, but this improvement also was not followed up. The third Cologne typographer, Johann Koelhoff the Elder, was the first (in 1472) to place printed "signatures" on the quires of a book, so as to show the binder the order in which they were to be arranged. Hitherto the quires had been marked by hand, and this improvement was not suffered to drop for a time like the others, but quickly spread all over Europe. At Augsburg Gunther Zainer completed his first book, an edition of the Latin Meditations on the Life of Christ taken from the works of S. Bonaventura, on the 13th March, 1468. Though he followed this with three heavy books which had found favour at Mainz and Strassburg, Zainer had the wisdom to strike out a line for himself. Augsburg had long been the chief centre of the craftsmen who cut and printed the woodcuts of saints, for which there seems to have been a large sale in Germany, and also the pictures used for playing-cards. The cutters were at first inclined to regard the idea of book-illustrations with suspicion, as likely to interfere with their existing business. It was decided, however, by the local Abbot of SS. Ulrich and Afra, an ecclesiastic with typographical tastes, that illustrated books might be printed so long as members of the wood-cutters' guild were employed in making the blocks. With this as a working agreement, illustrated books greatly prospered at Augsburg, not only Gunther Zainer, but Johann Bamler and Anton Sorg (a very prolific printer), turning them out with much success throughout the 'seventies.