THERE IS MUCH EXTANT MATERIAL from and about the young and early Nietzsche, including large numbers of early poems, school essays, school records, general notes, etc. In fact, Nietzsche seems, of all the great philosophers and of all important nineteenth-century intellectuals, to be the one about whom we have the most early extant material. The German critical edition of Nietzsche's writings covering the period after he became professor in Basel in 1869, the Kritische Studienausgabe (KSA), consists of thirteen volumes (as well as two volumes of philological commentary and chronology), of which six contain his published texts (along with a few unpublished works), and seven larger volumes of notes from his “literary remains” or Nachlass. Nietzsche's writings for the period before he became a professor in 1869 (including his philological publications and lecture notes) consist of some further ten volumes, contained in the Kritische Gesamtausgabe (KGW) of Nietzsche's works. All of this material, including some of the unpublished material from KSA, volume 1, will be the subject of this chapter. In the space available here, I can only give an overview of the most important material, point to some of the most relevant texts, and briefly discuss a few selected works. I cannot aim here for completeness; instead, I will focus on those texts that are of greater general interest (such as autobiographical texts), philosophically oriented, or relevant for his later thinking and published books.