Nietzsche famously regardedThus Spoke Zarathustraas his greatest work. However, despite Nietzsche's pervasive influence upon the philosopher and non-philosopher alike, and his own intense regard forZarathustra, there has been relatively little serious study of Nietzsche'smagnum opus.This book seeks to address this gap in the available literature by takingThus Spoke Zarathustraseriously, not only with respect to its impact on the interpretation of Nietzsche's philosophy, but also in light of the broader questions of the relationships between poetry, philosophy and existence. Fifteen leading Nietzsche scholars examine the structure, method, style and sources ofZarathustraas a philosophical text and its relationship to methodological and metaphilosophical questions amid the broader discussions of philosophy. The book also explores the implications of the philosophical questioning, interventions and teachings ofZarathustrawith respect to both its negative engagement with the tradition and its attempt to set forth somethingnew under the sunin its affirmative overcoming of nihilism.