Beyond: A Tribute To Massimo Scaligero
You Can't Kill Meme
2021
Homeopathy Unrefuted?
2021
Look Closer: The Rise and Fall of Robert Benfer
2018
Nel silenzio del parco
2024
En la cueva del mago
2017
Solve Et Coagula - The Great Work of Alchemy
2010
Die Gabe zu heilen
2017
Alchemy - Sacred Secrets Revealed
2008
Rudolf Steiner Waldorf Education: An Introduction
1993
Finding Rudolf Steiner
2006
The Science of Getting Rich
—
Zwischen Himmel und Erde - Anthroposophie heute
2010
Dr Rudolf Steiner and the Science of Spiritual Realities
1993
The Architecture of Rudolf Steiner
1991
