"By the Holy Father’s express wish said mgr. Müller , this collection of writings has been published with the author’s name Joseph Ratzinger". To accomplish this plan, the bishop founded the Institute Pope Benedict XVI in Regensburg: "This is the venue that will host an exhaustive documentation on the life, thought and work of the theologian, bishop and pontiff Joseph Ratzinger/Benedict XVI. The preparation of all the published and unpublished materials, the collection of biographical and theological information, and the setting up of a specialist library have laid the grounds for a wide-ranging analysis of the opera omnia". This edition of the collection of writings Joseph Ratzinger’s "Opera Omnia" aims to be, explained mgr. Müller, the "final draft" of his works in German. "The goal is to provide the most exhaustive presentation of his published works, completed by texts that had not been published yet or that had not been published in German, according to a systematic order that relates the chronology to the themes". Previous monographs have been included, unchanged, in the "Opera Omnia", where however they are completed by texts of a similar nature. In addition to strictly scientific texts, there are texts of different literary genres.” “