In 1961 (Pfullingen: Neske) Heidegger published these revised versions of his lectures on Nietzsche. The first volume contains the WS 1936/37 lectures on “The Will to Power as Art,” the SS 1937 lectures on “The Eternal Recurrence of the Same,” and the SS 1939 lectures on “The Will to Power as Knowledge” (for the unvarnished versions of these original lectures, see GA 43, 44, and 47).