What you eat is made out of thin air (and a tiny bit of dirt) -- Soil, the Earth's miracle skin -- The Earth's kidneys: When good soil turns bad -- Plants don't eat dirt: The underground economy -- Here, there and everywhere: The 'old friends' hypothesis -- Look after the soil, and the plants look after us -- Nutritional dark matter -- Here today, gone tomorrow -- Big ones, small ones, skinny ones, fat ones: Worms -- Bombs, germs and plants: 100 years of fast fixes creating big problems -- How the Green Revolution is turning the world brown -- You'll never plough a field by turning it over in your mind -- Burying charcoal and building soil -- Weeds: What we can see tells us about what we can't -- Hoome gardeners rock -- Compost, compost, and compost -- If it quacks, is it a duck? -- We are all, temporarily, not soil -- Keep them dawgies movin' -- A grain of truth: Regenerative agriculture -- What's the beef with methane? -- Money in the bank -- They germinated a seed on the Moon -- Loaves and fishes: Feeding a hungry world.