This book explores how population mobility varies among the countries of Asia. While much attention has been given to international migration, movement within countries is numerically much more significant. Coupling innovative methods developed in the global IMAGE project with the contextual knowledge of experts on 15 Asian countries, the book measures and explains how people across Asia differ in the probability of changing residence, the ages at which they move, and the impact of these migrations on the distribution of human settlement within each country. It demonstrates how stage of economic development, coupled with historical events, local contingencies, cultural norms, political frameworks, and the physical environment shape human migration. By using rigorous statistics in a robust comparative framework, this book provides a clear understanding of contemporary migration in Asia for students and academics, and a valuable resource for policy-makers and planners in Asia and beyond.