Book excerpt: There are many books that have been written about how to manipulate, amend, and control the soil to enable high-yield crop production. This is not one of those books. This book will empower you to restore the capacity of your soil to function to produce crops while reducing your dependency on expensive inputs. Soil health is about restoring the capacity of the soil to function. Currently, most agricultural and garden soils are essentially dysfunctional. This book will open your eyes to the truth about how soil is supposed to function and help you restore it to full health.