Volume 14 of The Complete Works of Friedrich Nietzsche presents the very first translation into English of the philosopher's unpublished notebooks from the period in which he began working on what he considered his best known and most important work, Thus Spoke Zarathustra.

Paul S. Loeb is Professor Emeritus of Philosophy at the University of Puget Sound and the author of The Death of Nietzsche's Zarathustra (2010). David F. Tinsley is Professor Emeritus of German and Medieval Studies at the University of Puget Sound and the author of The Scourge and the Cross: Ascetic Mentalities of the Later Middle Ages (2010).