The book provides sidebars offering statistics and a brief history for each country, as well as personal notes from the photographers about their experiences. But it is the "big pictures" that tell most of the story. In one, a British family pauses before a meal of tea and crumpets under a cloudy sky. In another, wary Bosnians sit beside mattresses used as sniper barricades. A Malian family composed of a husband, his two wives, and their children rests before a few cooking and washing implements in golden afternoon light. Material World is a lesson in economics and geography, reminding us of the world's inequities, but also of humanity's common threads. An engrossing, enlightening book. --Maria Dolan