Book Details + Condition: Samuel Weiser (York Beach, Maine). First Edition, 1987. Softcover. 214 pages. Written by English occultist Peter J. Carroll, LIBER NULL is a manual of rituals and exercises for occultists and practitioners of magic, and PSYCHONAUT is a treatise on the theory of chaos and group magic. Illustrations throughout by Andrew David. In very good condition, with firm binding; light shelf wear to covers; interior is clean and free of markings.