Liber Samekh

Liber Samekh is Crowley’s ritual for the invocation of the Holy Guardian Angel, designed as a practical working derived from older ceremonial formulas and adapted for Thelemic practice. It is historically significant as one of Crowley’s clearest presentations of a central goal in his system, and readers will find the ritual instructions alongside commentary explaining its structure and purpose.

Aleister Crowley (1875–1947) was an English occultist, ceremonial magician, poet, and religious innovator who founded Thelema, a modern esoteric system centered on will, ritual, and spiritual liberation. His many books, including Liber AL vel Legis and Magick in Theory and Practice, made him one of the most influential figures in twentieth-century occult literature.