a photo facsimile of Liber Pennae Praenumbra. Secondary sources Tertiary sources Other sources Free Encyclopedia of Thelema (2005). Thelema. Retrieved March 12, 2005. Thelemapedia. (2004). Thelema. Retrieved April 15, 2006. Further reading External links Thelema 101 – a complete introduction to the spiritual philosophy of Thelema Thelema at the Internet Sacred Texts Archive – a collection of texts on the topic of Thelema Journal of Thelemic Studies – an academic journal investigating the occult tradition of Thelema Aleister Crowley Ceremonial magic Magic words Mysticism New religious movements Western esotericism