The 'Atlas of Human Migration' explains how humans have constantly overcome environmental and physical barriers and adapted to new social, political and environmental realities. From an estimated original 10,000 to 20,000 individuals, the world population has expanded to more than six billion. This book describes how it has spread over the world. The compelling stories of the world's peoples and their migrations through time are enhanced by informative annotated maps and informative timelines. Photographs, paintings and artifacts bring to life the history of human migration. In easy-to-understand language, a team of academic experts examines mass migrations -the motivations behind them, and their impact on the world.