Prefaces to Unwritten Works by Friedrich Nietzsche.."Prefaces to Unwritten Works is a collection of five essays, prefaces to books that Nietzsche never went on to write. Nietzsche himself put these prefaces together in the form of a small leather-bound, handwritten book, and gave that book to Cosima Wagner as a Christmas present in 1872. The dedicatory letter indicates that Nietzsche sent this little book to Cosima "in heartfelt reverence and as an answer to verbal and epistolary questions."

As such, this work is a window into Nietzsche's relations with the Wagners at the height of their association, but it is also a continuation of Nietzsche's radical confrontation with Greek antiquity that had begun with the then-recently published Birth of Tragedy. The Wagners read Nietzsche's book of prefaces on the evening of New Year's Day 1873, and Cosima records in her diary five days later that at night, "again" she reflected about the essence of art as a consequence of Nietzsche's work. A month later, Cosima sent Nietzsche a letter encouraging him to write at least two of the books promised by his prefaces." Nietzsche did not go to write the books heralded by these prefaces, but the prefaces themselves provide substantial challenges of their own and intriguing clues as to the form and content of the books Nietzsche may have intended. Some of these prefaces are better known to students of Nietzsche than others and have attracted significant attention from scholars. The first essay is entitled On the Pathos of Truth, and it consider the relative value of truth and art for human life. The second essay, Thoughts on the Future of Our Educational Institutions, is the only preface in this collection regarding which Nietzsche did actually go on to write a book, albeit a book he did not publish (entitled On the Future of Our Educational Institutions, available from St. Augustine's Press). This essay is a revised version of the preface Nietzsche wrote for that book, and the changes Nietzsche made are indicative of the plans he h