This collective volume provides information on issues at the heart of public discourse on immigration. It includes chapters written by prominent scholars from different countries. The studies presented use a wide array of methodologies, including quantitative and qualitative research, longitudinal studies, and analyses of macro-level data. The book provides a broad time perspective on immigration processes; it presents studies that span from the pre-migration period, and include second and third generation immigrants. The empirical studies included in the book are based on rigorous scientific research and may serve scholars, students, and professionals working with immigrants. However, the book is also relevant for anybody interested in immigration policies, strategies of immigrants' adjustment, and the impact of mass immigration on both immigrants and the receiving societies.