I've been attempting to deduce which of Nietzsche's works Crowley may have read, to understand his influence on the philosophy of Thelema.
English translations began appearing in the 1890's. In Confessions, he mentions meeting a person who identified as a Nietzschean in 1902. The only book he mentions by name is 'The Antichrist,' however he probably at least read Beyond Good and Evil, Gay Science, and (judging from his influence on AC) probably whatever he could get his hands on at the time.
I compiled a list of all the instances I could find where he mentions Nietzsche (quite frequently throughout his life) —
[1907] Collected Works Vol. III
- A Mademoiselle le Modele — Dite Jones
[1910]* The World’s Tragedy *
- Preface: Christianity
- Preface: The Poem Itself
[1911] The Equinox Vol I, No VI
- The Ordeal of Ida Pendragon
** The Giant’s Thumb
- The Vindication of Nietzsche
[1915] Liber XV: The Gnostic Mass
- The Saints
[1916] Vanity Fair Magazine
- On the Management of Blondes
[1916] The Gospel According to St. Bernard Shaw
- The Teachings of Christianity
- For Better, For Worse
[1917] The International Vol XI, No 10
- Quelque Chose (Some Shows)
[1918] Liber Aleph vel CXI: The Book of Wisdom or Folly
- De Virtute Audendi (On the Virtue of Daring)
- De Poetis (On the Poets)
[1919] Liber LII: Manifesto of the O.T.O.
[1920] Diaries – July 11th, 1920
[1920] Diaries – July 17th, 1920
[1922] The Law is For All
- Chapter II, verse 21 commentary
- Chapter III, verse 57 commentary
[1923] Commentaries on Liber LXV: The Book of the Heart Girt With a Serpent
- Chapter V, verse 37 commentary
[1923] The Equinox Vol I, No X
- Liber XLVI: The Key of the Mysteries
* I: Unity (footnote)
[1926] The Revival of Magick
- A Letter to Henry Ford
[1930] The Confessions of Aleister Crowley
- Chapter 42
- Chapter 50
- Chapter 60
- Chapter 76
- Chapter 87
[1943] Magick Without Tears
- Chapter IV: The Qabalah: The Best Training for Memory
- Chapter VII: The Three Schools of Magick (part 2)
- Chapter XLVIII: Morals of AL—Hard to Accept, and Why Nevertheless We Must Concur
- Chapter LXX: Morality (part 1)
[1944] The Book of Thoth
- The Atu: The Fool—Hoor-pa-kraat
Most of these refer to Nietzsche's views on ethics and morality, but a few indicate that he was aware of some of the more metaphysical theories in his works.