The Theosophical Glossary by H.P. Blavatsky (PDF)

The Key to Theosophy: A Clear Exposition Based on the Wisdom Religion of All Ages by H.P. Blavatsky (PDF)

Madame Blavatsky on the Book of Enoch by H.P. Blavatsky (PDF)

Dynamics of The Psychic World: On Magic, Mediumship, Psychism, and the Powers of The Spirit by H. P. Blavatsky (PDF)

The Voice of the Silence: Being Extracts from the Book of the Golden Precepts by H.P. Blavatsky (PDF)

Isis Unveiled: A Master-Key to the Mysteries of Ancient and Modern Science and Theology Volumes 1 and 2 by H. P. Blavatsky (PDF)

The Secret Doctrine: The Synthesis of Science, Religion and Philosophy, Vol. 2, Anthropogenesis by H. P. Blavatsky (PDF)

The Secret Doctrine: The Synthesis of Science, Religion and Philosophy, Vol. 1, Cosmogenesis by H. P. Blavatsky (PDF)