The Salar de Uyuni is the world’s largest salt flat, shown here poetically in all its strange perfection. For generations, Bolivians have collected and processed the salt laboriously by hand. Moises is one of the last of these traditional saleros. He is happy with the work and the eerie beauty of the landscape, proud to live in harmony with this odd land. But his wife and brother yearn for change. And it seems change is inevitable. Valuable lithium deposits have been discovered under the salt flats, and the Bolivian government is eager to exploit them to boost the country’s meagre economy.