* 'The first popular study written on the subject. And popular it deserves to be. George has the right kind of breezy serious approach needed with this universal taboo.' Daily Mail * 'A fascinating, wise, calm and scrupulously drawn portrait of the world and its waste - [this is] a seriously important book.' Simon Winchester * 'George bravely submerges herself in the tragedy and occasional comedy of global sanitation. Sludge, biogas, sewage: I ate up and wanted more! The most unforgettable book to pass through the publishing pipeline in years.' Mary Roach, author of Stiff and Bonk