In 20 short books, Penguin Classics brings you the new canon of great environmental worksOver the past 75 years, a new canon has emerged. As humans have driven the living planet to the brink of collapse, visionary thinkers around the world have raised their voices to defend it. Their words have endured, becoming the classics that define the environmental movement today.Food Rules, Michael Pollan's wise and witty critique of the western industrialised diet, distils the wisdom of history and traditional cultures to three simple rules- Eat food. Not too much. Mostly plants.