The Foundations and Principles of Biodynamic Preparations

‘This must be the definitive book on the topic, based on Steiner’s 1924 agriculture course that metamorphosed into biodynamics. Here he explained ‘how the health of the soil and of the plants depends upon bringing nature into connection with spiritually creative forces that stream in from the cosmos.’ The eight spray and compost preparations are intended to revitalise the soil and are based on the cycle of seasons characterised by summer, air and warmth, and winter, water and earth.’– Paradigm Explorer‘For those engaged in trying to orientate themselves in the riddles that the agriculture course presents through theory and understanding, this book is recommended as a thorough and diligent attempt at providing some answers.’– Star and Furrow

Dr. Manfred Klett (1933-2025) was an important figure in the biodynamic movement. In 1965, he co-founded a 450 acre biodynamic farm near Frankfurt, Germany, which continues to thrive today. He was director of the Department of Agriculture at the Goetheanum, Switzerland from 1988 until 2002.

Bernard Jarman is a biodynamic consultant based in Stroud, UK. He is a director of the UK Biodynamic Association.