This book contains fifteen original papers covering, a broad spectrum of topics in Jewish demography and identity, considering both Diaspora communities and the population of Israel. While most of the papers make use of quantitative data, some base themselves on qualitative and archive materials. The book is divided into five parts, reflecting the different complementary dimensions investigated: historical demography, history, and politics, immigration and immigrant adaptation, transnationalism, and demography and identity. This work is presented to Professor Sergio Dellapergola upon his retirement from teaching at the Hebrew University of Jerusalem.

"“. . . Readers who are familiar with Professor DellaPergola’s work will see his influence clearly throughout this volume. The chapters are thoughtful, nuanced, and well-researched, and, like DellaPergola’s long list of publications, tackle diverse subject matter across the Jewish communities of many nations. This book is a fitting tribute to a dynamic researcher and teacher, and scholars of the Jewish community are fortunate that DellaPergola’s work and that of his colleagues and students will continue to benefit us for many years to come.”" - Contemporary Jewry (July 2015)

"This is a rich and varied collection of essays, many of which complement one another. Each of them succeeds in advancing the field to which Sergio DellaPergola has contributed so much and influenced so extensively." - Studies in Contemporary Jewry