Aleister Crowley (1875–1947), born Edward Alexander Crowley, was an English occultist, ceremonial magician, poet, and mountaineer. wiki
- Marco Pasi, Aleister Crowley and the Temptation of Politics (Acumen Publishing, 2013).
- Egil Asprem, "The Problem of Disenchantment: Scientific Naturalism and Esoteric Discourse, 1900-1939", PhD, University of Amsterdam, 2013. (includes comparison with Rudolf Steiner)