Foundation Stone Meditation. A Key to the Christian Mysteries, Temple Lodge Publishing, Forest Row 2006. 2003: Valentin Tomberg and Anthroposophy: A Problematic Relationship, Temple Lodge Publishing, Forest Row 2005. 2004: What is Anthroposophy? Temple Lodge Publishing, Forest Row 2006. 2004: The Mystery of John the Baptist and John the Evangelist at the Turning Point of Time: An Esoteric Study, Temple Lodge Publishing, Forest Row 2005. 2006: Relating to Rudolf Steiner: And the Mystery of the Laying of the Foundation Stone, Temple Lodge Publishing, Forest Row 2008. 2006: Maximilian Woloschin. Mensch - Dichter - Anthroposoph. Verlag am Goetheanum, Dornach 2006. 2006: Anthroposophy and The Philosophy of Freedom. Anthroposophy and its Method of Cognition. The Christological and Cosmic-Human Dimension of The Philosophy of Freedom, Temple Lodge Publishing, Forest Row 2009 [first German ed. 2006]. 2007: The Guardian of the Threshold and the Philosophy of Freedom: On the Relationship of The Philosophy of Freedom to the Fifth Gospel, Temple Lodge Publishing, Forest Row 2011. 2007: Friedrich Schiller und die Zukunft der Freiheit. Verlag am Goetheanum, Dornach 2007. 2008: The Esoteric Significance of Spiritual Work in Anthroposophical Groups and the Future of the Anthroposophical Society, Temple Lodge Publishing, Forest Row 2008. 2008: The Mystery of the Resurrection in the Light of Anthroposophy, Temple Lodge Publishing, Forest Row 2010. 2009: The Whitsun Impulse and Christ's Activity in Social Life, Temple Lodge Publishing, Forest Row 2011. 2009–2011: The Creative Power of Anthroposophical Christology (with Peter Selg), SteinerBooks, Great Barrington, MA, 2012. Part 1: The Christology of the Book "An Outline of Occult Science"; Part 2: The First Goetheanum and Its Christological Foundations; Part 3: Christ's Reappearance in the Etheric in Relation to The Fifth Gospel; Part 4: The Christmas Conference and the Founding of the New Mysteries. 2010: Why Become a Member of the School of Spiritual Science? Temple Lodge Publishing, Forest Row 2013. 2010: The Appearance of Christ in the Etheric. Spiritual-Scientific Aspects of the Second Coming, Temple Lodge Publishing, Forest Row 2012. 2010: Honoring Life. Medical Ethics and Physician-Assisted Suicide. A Consideration from an Anthroposophical Point of View (with Peter Selg), SteinerBooks, Great Barrington 2014. 2011: Why Become a Member of the Anthroposophical Society? Temple Lodge Publishing, Forest Row 2012. 2011: Rudolf Steiner's Path of Initiation and the Mystery of the Ego and The Foundations of Anthroposophical Methodology (Rudolf Steiner), Temple Lodge Publishing, Forest Row 2013. 2011: Rudolf Steiner's Sculptural Group: A Revelation of