"In his most sweeping historical work, occult scholar and widely known voice of esoteric ideas Mitch Horowitz presents a lively, intellectually serious historical exploration of modern occultism, from astrology and alchemy to the dawn of Theosophy and modern witchcraft, and the spiritual revolutions that followed. Each chapter is rounded out with key terms and supplemental readings for a full-360 tour of modernist arcana and a historical journey that leaves your experience of esoterica forever changed."-- Provided by publisher.