The handbook explores Nietzsche's philosophy in its foundations (readings, sources, influences), its manifestations (analysis of all works), and its impact, providing guidance within a Nietzsche scholarship that is no longer easily comprehensible. Friedrich Nietzsche is regarded as the greatest phenomenon of influence in the history of thought. At the same time, the interpretation of his philosophy has been overshadowed by trends and demonizations, ranging from the editorial policies of the Nietzsche Archive to the well-known political instrumentalizations of Nietzsche in National Socialism and Marxism-Leninism. Since the publication of the Critical Complete Edition of Nietzsche's works and letters and the Nietzsche Renaissance of recent decades, research into Nietzsche's philosophy has made significant progress. The image of the solitary thinker has been replaced by...