Dee, Kelley and Crowley

The Aethyrs come from the records of Dee and Kelley's angelic communications, but it was Aleister Crowley who, in 1900 and 1909, famously "worked" the thirty Aethyrs, recording his visions in The Vision and the Voice and making them central to the modern practice of Enochian magic. The atlas distinguishes the original Elizabethan material from Crowley's later elaboration.

The atlas gives each Aethyr its call, its governors, and its place in the ascent. The ninety-one governors distributed among the Aethyrs are treated in their own category, within Ceremonial & Esoteric Magic.