Migration is one of the key issues in Ireland today. This book provides a new and original approach to understanding contemporary Irish migration and immigration, showing that they are processes that need to be understood together rather than separately. It uses a wide range of data - from statistical reports to in-depth qualitative studies - to show these connections. The book focuses on four key themes - work, social connections, culture and belonging - that are common to the experiences of immigrants, emigrants and internal migrants. It includes a wide selection of case studies, such as the global GAA, the campaign for emigrant voting, and the effects of migration on families. Clearly written and accessible, this book is an invaluable resource for students and scholars of Irish migration. It also has broader relevance, as it suggests a new approach to the study of migration nationally and internationally.