Rudi Bind studied Goethean phenomenology and existential philosophy. He has worked as a journalist and primary teacher, and is co-founder of the Heinrich Barth Society. He lives in Arlesheim, Switzerland.

Ueli Hurter is the joint-Head of the Agriculture Section at the Goetheanum, Switzerland, and sits on the executive board of the International Biodynamic Association.

Bernard Jarman was Executive Director of the Biodynamic Agricultural Association in the UK for fifteen years and continues to teach courses in biodynamic agriculture all around the world. He is the author of The Biodynamic Movement in Britain and lives in Stroud, UK.