London: Routledge & Kegan Paul, 1957. Eighth Impression. Hardcover. Octavo. 5.5 x 8.5 in. xiii, 360 pp. Illustrated with 2 folding tables. Contains The Book of Concealed Mystery, The Greater Holy Assembly, and The Lesser Holy Assembly. Translated by S.L. Macgregor Mathers, one of the founders of the Hermetic Order..... More