The book is a sociological analysis of immigration in Ireland. It is the first major comprehensive study of labour and asylum immigration into Irish society. From the Great Irish Famine until the 1990s Ireland was historically a country of entrenched emigration like no other. In 1996 it became the last of the old EU 15 states to become a country of net immigration. From a relatively homogenous country characterised by Catholicism and rural development it has become one of the most globalised countries in the world containing over 188 different nationalities in the space of a decade. This book blends theoretical and empirical analysis to examine both the process of immigration and how it has been interpreted by various social actors. Drawing on qualitative and quantitative data as well as sociology and political economy it provides a broad and insightful evaluation of the transformations wrought by immigration on Irish society. The book will appeal to undergraduates, postgraduates and those readers who want both an introduction to immigration and an in-depth analysis of its repercussions for Irish society.