I : Access to Western Esotericism, Albany, State University of New York Press, 1994, vol. II: Theosophy, Imagination, Tradition, Studies in Western Esotericism, Albany, State University of New York Press, 2000
This publication is referred to as I : A gateway to Western esoteric thought, published by State University of New York Press in 1994, covering volume II: Theosophy, Imagination, Tradition, within the framework of Studies in Western Esotericism.