Occult Books - Sefer Yetzirah: The Book of Creation in Theory and Practice. Rabbi Aryeh Kaplan's translation of the Sefer Yetzirah, the most mysterious of all kabbalistic texts. Theoretical, meditative and magical implications are brought to light. Expounds on the dynamics of the spiritual domain, the worlds, of the sefirot, souls and angels. Paperback, 398 pages.