Dorian Gieseler Greenbaum has practised and taught astrology since 1992. In 2009, she received her Ph.D. from the Warburg Institute, London.
Her book, based on her PhD, The Daimon in Hellenistic Astrology: Origins and Influence, was published in 2016. She is also known for her book Temperament: Astrology’s Forgotten Key (2005).
Dorian lectures and teaches internationally (FAA, UAC, the British AA, University of Wales Trinity St David on the MA in Cultural Astronomy and Astrology). Her interests include astrological lots and how the daimon works in astrology while her current passion is to rename the Part of Spirit to its correct name, the Lot of Daimon.