This book examines all forms of human trafficking globally, revealing the operations of the trafficking business and the nature of the traffickers themselves. Using a historical and comparative perspective, it demonstrates that there is more than one business model of human trafficking and that there are enormous variations in human trafficking in different regions of the world. Drawing on a wide body of academic research - actual prosecuted cases, diverse reports, and field work and interviews conducted by the author over the last sixteen years in Asia, Latin America, Africa, Europe, and the former socialist countries - Louise Shelley concludes that human trafficking will grow in the twenty-first century as a result of economic and demographic inequalities in the world, the rise of conflicts, and possibly global climate change. Coordinated efforts of government, civil society, the business community, multilateral organizations, and the media are needed to stem its growth.