This bibliography encompasses all extant books of emblems, works illustrated with emblems, and books dealing with the theory and practice of emblematics written by members of The Society of Jesus. Also included are translations and adaptations in all languages of Jesuit works by Catholics and non-Catholics alike. This bibliography will be to Jesuit emblematics what De Backer-Sommervogel is to the writings of The Society of Jesus. The complete Jesuit Series will probably comprise some 1,700 entries: about 500 first editions and a further 1,200 subsequent editions, issues, and translations. Many books are described here for first time. Of the 240 titles in this volume, 121 do not appear in Praz, 93 not in Landwehr, and 54 not in De Backer-Sommervogel. Part One also contains a substantial introduction to the various information fields that constitute the bibliographic descriptions.