Liber 231

Liber 231 by Aleister Crowley details two sets of 22 spirits associated with the Major Arcana. The Mercurial set are discussed in the Book of Thoth, while the Imprisoned spirits are not mentioned. Liber 231 itself is very short, since it contains the full set of sigils for each of the spirits, and 22 verses. Kenneth Grant in Nightside of Eden describes his experiences after invoking the spirits using ritual magick (which presupposes a demonic nature - and that is what he found!). Linda Falorio was inspired by Grant's work to create the Shadow Tarot of 22 Major cards, and soon to be published as a full deck of 78 cards. Until recently, Grant and Falorio were the the only published sources, but while I was writing Tarot and the Magus they appeared, and guided me to write many of the sections of the book.