Even if you think you know a lot about soil, by reading Matthew Evans’ tome on the good dirt you are guaranteed to find out more. Starting with a history of how the earth formed and created the soils we grow our food in, Soil proceeds to explain just how much we have neglected, over-ploughed, over-grazed and depleted the earth’s thin layer of topsoil that keeps us alive.Not all doom and gloom, the book also imparts plenty of positive ways we can all contribute to a healthy, functioning microbial soil life. It explains how we should use weeds as indicator of soil health, the benefits of biochar and why practices like biodynamics, holistic management and regenerative farming can make a real difference.What Matthew brings to light in his conversational manner is that every one of us should be thinking more about soils. Because what we do in our backyards, on our farms and in our food choices matters. While we can’t see what goes on in the ground, knowing what is happening in this intricate web of life is crucial for our own survival.