This book offers an outstanding synthesis of the evolving research at the intersection of mobility, knowledge diffusion, and economic development. Francesco Lissoni, Andrea Morrison, and their contributors deliver a useful synthesis of cutting-edge rigorous research, combining historical depth with contemporary relevance that explores how migrants drive innovation, enrich diversity, and shape both host and home economies. This is a valuable contribution for those seeking a deeper, evidence-based understanding of how migration continues to shape the frontiers of global innovation. -- Jackline Wahba, Professor of Economics, University of Southampton Recent research has increasingly studied how high-skilled migration shapes innovation. This book offers a timely and comprehensive examination of the topic, integrating different perspectives and highlighting promising directions for future study. A must-read for anyone interested in how global talent fuels knowledge creation and technological progress. -- Fabian Waldinger, Professor, Ludwig-Maximilians-Universität Munich A crucial contribution to understanding how migration affects innovation. Blending historical evidence, economic analysis, and policy insights, this book provides much needed empirical evidence and conceptual frameworks on a topic central to current and perennial debates on the merits of cross-border talent mobility. -- Zeke Hernandez, Professor at the Wharton School and Author of The Truth About Immigration: Why Successful Societies Welcome Newcomers