This bio-bibliographical study concentrates on printers, publishers and booksellers, who originated in the Southern Netherlands and who were active in the Dutch Republic c. 1570-1630. It is largely based on archive materials and numerous new data are brought to light. By far the greater part of this book (pp. 16-554) is occupied by a bio- bibliographical Dictionary of printers, publishers, booksellers, active in the Republic of the United Netherlands c. 1570-1630. With 38 illustrations and 160 facsimiles of printer's marks.