From A like bee or weed to Z like zodiac, passing through C like Cow dung compost, this book explains the principles of biodynamic agriculture, a still little-known practice that ensures the preservation of soils, better protection of biodiversity, and quality food. Founded on the theories of Rudolf Steiner - his Course for Farmers - it is based on various concepts such as the autonomy of the agricultural organism, the application of natural plant-based preparations, and respect for the rhythms of the cosmos. By exploring the foundations, methods, and means of biodynamics, Evelyne Malnic sheds light on this pioneering "organic" agriculture, which is undoubtedly the agriculture of the future.