This second-revised edition of Crowley's magnum opus features new, more legible typesetting, text corrections based on a previously unseen corrected proof, and the previously unpublished Liber Testis Testitudinis. The original manuscript of The Book of th
Liber 418, The Vision and the Voice is the record of Aleister Crowley's exploration of the 30 Æthyrs of the Enochian system of magick developed by Elizabethan magicians Dr. John Dee and Edward Kelley. Crowley obtained these visions in Mexico in 1900m and
