Symbolism
- A Dictionary of Symbols by J.E. Cirlot | Philosophical Library [1971]
- A New Encyclopedia of Freemasonry Combined Edition by Arthur Edward Waite, P.M., P.Z. [1970]
- Ancient Pagan Symbols by Elisabeth Goldsmith | The Knickerbocker Press [1929]
- Monas Hieroglyphica by John Dee | Published by Ouroboros Press [2021]
- Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry by Albert Pike [1949]
- The Book of Runes by Ralph Blum [1987]
- The Book of Secrets of Albertus Magnus by Michael R. Best and Frank H. Brightman | Oxford University Press [1974]
- The Complete Encyclopedia of Signs & Symbols: Identification and analysis of the visual vocabulary that formulates our thoughts and dictates our reactions to the world around us by Mark O’Connel and Raje Airey [2012]
- The Kybalion by The Three Initiates (Centenary Edition) | A Tarcher Perigee Book [2018]
- The Mysteries by Goethe – By Rudolf Steiner | Rudolf Steiner Publishing Co [1946]
- The Philosophy of War by Dr. and Mrs. F. Homer Curtiss | Curtiss Philosophic Book Co. [1939]
- The Secret Language of Symbols by David Fontana [1994]
- The Study of The Kabalah by William Wynn Westcott | Allied Publications [Unknown]