This review essay focuses on the recent two-volume Nietzsche-Kommentar which is devoted to Also Sprach Zarathustra but it utilizes the slightly earlier one on Die fröhliche Wissenschaft. This essay is centred upon four key Nietzschean themes: the death of God, the Übermensch, Zarathustra's animals, and the eternal return of the same. The works by Grätz and Kaufmann are detailed and massive commentaries on two of Nietzsche's greatest books and are recommended for all who are intent on understanding Nietzsche's philosophy.