The Book of the Sacred Magic of Abra-Melin is a mystical text written by S. L. MacGregor Mathers. The book is based on the teachings of Abraham of Worms, a medieval Jewish mystic who claimed to have learned the secrets of magic from an angel. The book is divided into three parts, with the first part detailing the life and teachings of Abraham of Worms, the second part providing instructions for performing the magical rituals and spells, and the third...