Comprehensive bibliography of Spanish books printed in the Southern Netherlands (present-day Belgium) until 1800. It includes books in Spanish (even in part) printed within the present frontiers of Belgium, but also books printed under a fictitious Belgian imprint, or, vice versa, in Belgium under a fictitious foreign imprint, as well as imprints without place or publisher whose subject matter suggests a Belgian origin. 1413 Titles (plus a few Addenda) are described in great detail. A chronological list (1520-1785) and extensive Indexes at end. All the marks and devices of the printers and publishers dealt with are reproduced in the original size. Awarded the Triennial Prize for Bibliography of the International League of Antiquarian Booksellers.