Whatl impact does migrancy have on the lands left behind? How do host countries handle their new arrivals? Contemporary history is shot through with such questions, which resurface nightly on the news. From clichés to real life, this work discusses places, facts, and numbers to help us see more clearly. The author, an indisputed specialist, offers up 40 well-researched fact sheets for understanding the stakes and challenges of a worldwide phenonmenon. The book is well illustrated with maps, graphs, and charts.