Stephen Castles provides a deeper understanding of recent ‘migration crises’ in this fascinating and highly topical work. The book links theory and methodology to real-world migration experiences, with a truly global perspective and in-depth analysis of the links between economics, migration and asylum and refugee issues. Key features surrounding this complex and often controversial field are examined through five thematic sections: the sociological theories and methodologies most appropriate for understanding the migratory process, including the changing nature of international migration in an era of globalizationanalysis of contemporary types of migration and the cruciality of understanding migration as a dynamic social process – inability to do so may lead to policy failure and unintended consequencesthe relationship between migration and developmentasylum and refugeesthe effects of international migration on citizenship and identity, providing a critical perspective on the emergence of transnationalism.Migration, Citizenship and Identity will appeal to graduate students, senior undergraduates and lecturers in international migration, globalization, sociology, political science, demography and geography. Government officials, civil society activists, social workers, medical personnel, lawyers and other professional groups whose work is concerned with migrants and refugees will also find much to engage them.