Soil Fertility and Animal Health: The Albrecht Papers Volume 2 by William A. Albrecht Ph.D. ed. by Charles Walters
Albrecht was the premier soil scientist and was dismayed by the rapid chemicalisation of farming that followed WWII.
This book is a well-organised explanation of the relationship between soil fertility and animal and human health.
This is a great book for those just familiarising themselves with these concepts and the perfect companion to Eco-Farm - An Acres USA Primer.
Each volume is a stand-alone book - you don’t need to have the entire set to learn vast amounts from this master soil scientist.