Rudolf Steiner's superb thesis provides deep insight into spiritual science, and the history of mankind as viewed through the philosophy of the anthroposophy movement he founded. An Outline of Esoteric Science attempts to reconcile mankind's spiritual being with the scientific exactitude which had emerged among scholars in the 19th century. Steiner lays out the spiritual realms which are invisible to us, attempting to use a defined precision similar to that which had emerged in science. In the final section, this book refers to the spiritual development and contemplation necessary for individuals to see the spiritual realms and planes which comprise existence and the universe. The means by which individuals may train themselves introspectively to see are detailed by Steiner, whose theosophical philosophy was, by the time of this book's publication in 1909, well-developed.

Herbert Silberer's examinations of alchemy and the occult, and his attempts to correlate the two crafts to the pursuit of psychoanalysis, is published here complete with the original illustrations. First published in 1917, this text represents the extensive investigations Herbert Silberer undertook in order to map occurrences in the occult with the ascendant psychoanalytic disciplines present in the Vienna School of which he was part. This text is marked by its depth of research, with sources such as Hermes Trismegistus, Flamel, Lacinius, Michael Meier, Paracelsus, and Boehme quoted and drawn upon in service of Silberer's thesis. The support of alchemy as a spiritual movement, on the same level as the yoga traditions of the Indian subcontinent, is also notable. Together with the three original illustrations, this edition also contains the extensive bibliography and notes of Silberer.

The Secret Teachings of All Ages is perhaps the most comprehensive and complete esoteric encyclopedia ever written. The sheer scope and ambition of this book are stunning. In this book Manly P. Hall has successfully distilled the essence of more arcane subjects than one would think possible. He covers Rosicrucianism and other secret societies, alchemy, cryptology, Kabbalah, Tarot, pyramids, the Zodiac, Pythagorean philosophy, Masonry, gemology, Nicholas Flammel, the identity of William Shakespeare, The Life and Teachings of Thoth Hermes Trismegistus, The Qabbalah, The Hiramic Legend, The Tree of the Sephiroth, and Mystic Christianity. There are more than 200 illustrations included here (and in the trade paperback edition) many of which have been omitted from other publisher's editions of this book. This is essential reading for anyone wishing to explore esoteric knowledge.