He created the training program for the Druidical Order of the Golden Dawn, which he founded in 2013. He served as Grand Archdruid of the Ancient Order of Druids in America, an initiatory organization teaching Celtic nature spirituality, from 2003 - 2015. He published The Druidry Handbook, which served as the AODA’s core textbook and curriculum. He came to Druidry by way of the Order of Bards, Ovates and Druids in 1995 after some twenty years’ involvement in Hermetic occult spirituality. He received the Mount Haemus Award in 2003 from OBOD for his lecture "Phallic Religion in the Druid Revival".
Politics, blogging, and nonfiction
Greer describes himself as a moderate Burkean conservative, influenced by the political theorist Edmund Burke. He is currently blogging at Ecosophia, where he has written about the intersection of magic and politics. His previous blog on occult topics The Well of Galabes is also hosted on Ecosophia. He previously blogged at The Archdruid Report on peak oil, economics, history, philosophy and related topics during 2006-2017. He believes that gradual societal collapse will ensue as fossil fuel powered industries and societies decline through resource depletion. In a 2009 blog post entitled "Hagbard's Law", he contrasted the attention global warming receives compared to peak oil.
Fiction
Greer has written a series of fantasy novels based on the worlds created by H.P. Lovecraft entitled "The Weird of Hali". He has also written deindustrial science fiction and a political-military thriller Twilight’s Last Gleaming.
Reception
Writing in The Futurist magazine, Rick Docksai declared that Greer's book The Ecotechnic Future is "as realistic a portrayal of the end of civilization as one is likely to find." It was also positively reviewed in and was recommended in the industry journal Energy Policy. The International Journal of Agricultural Sustainability referred to his book The Wealth of Nature as "challeng the paradigms that underlie the complex system of wealth distribution we know as economics." His book The New Encyclopedia of the Occult was selected as a reference text in 2005 by American Libraries and noted by Booklist and Publishers Weekly.
Spirituality and the occult
Inside a Magical Lodge: Group Ritual in the Western Tradition
Monsters: An Investigator's Guide to Magical Beings
The New Encyclopedia of the Occult
Learning Ritual Magic: Fundamental Theory and Practice for the Solitary Apprentice, co-authored with Clare Vaughn and Earl King, Jr
A World Full of Gods: An Inquiry into Polytheism
Encyclopedia of Natural Magic
The Druidry Handbook: Spiritual Practice Rooted in the Living Earth
Gérard Thibault d'Anvers. Academy of the Sword, trans. John Michael Greer
Atlantis: Ancient Legacy, Hidden Prophecy
Pagan Prayer Beads: Magic and Meditation with Pagan Rosaries, co-authored with Clare Vaughn
The Druid Magic Handbook: Ritual Magic Rooted in the Living Earth
The Art and Practice of Geomancy: Divination, Magic, and Earth Wisdom of the Renaissance
Element Encyclopedia of Secret Societies: The Ultimate A–Z of Ancient Mysteries, Lost Civilizations and Forgotten Wisdom
The Druid Revival Reader, ed. John Michael Greer
The Druid Grove Handbook: A Guide to Ritual in the Ancient Order of Druids in America, ed. John Michael Greer
The Blood of the Earth: An Essay on Magic and Peak Oil
Mystery Teachings From the Living Earth
The Gnostic Celtic Church: A Manual and Book of Liturgy, ed. John Michael Greer
The Celtic Golden Dawn: An Original & Complete Curriculum of Druidical Study
