In 1861 C. F. Wittig of Leipzig published Die Schnellpresse, ihre Mechanik und Vorrichtung zum Druck aller typographischen Arbeiten. This work of 105 pages appears to be the first book published in German on machine printing and it may also be the earliest manual on machine printing published in any language. Wittig's work predated the first work on the subject in French by Monet (1872) and the first book in English by Gaskill (1877). Revised editions of Wittig's book appeared in 1866 and 1878.
Bigmore & Wyman, A Bibliography of Printing (1880-86; 2001 edition) III, 91.