- Meditations on the Tarot: A Journey into Christian Hermeticism
- Christ And Sophia: Anthroposophic Meditations on the Old Testament, New Testament, And Apocalypse
- Studies on the Foundation Stone Meditation
- Inner Development: Seven Lectures : Rotterdam 15-22 August 1938
- Covenant of the Heart: Meditations of a Christian Hermeticist on the Mysteries of Tradition