“In Elizabeth Collier and Charles Strain’s Global Migration: What’s Happening, Why, and a Just Response, the authors bring together key theological and ethical resources to analyze a most urgent sign of our times. Their valuable discussion of the complex factors driving and confronting people on the move today is brought to life with compelling case studies from Catholic Relief Services fieldwork. The authors skillfully illuminate Christian witness from biblical texts through Catholic social teaching to lived responses throughout the volume. The authors also underscore the critical need to understand root causes and contexts of migration, not just its symptoms. They helpfully show how fear and misunderstanding can distort immigration debates and prevent genuine encounter. The book’s ‘see-judge-act’ framework guides readers from clear perception to moral analysis to a range of innovative responses. As the topic of migration grows ever more fraught, this book serves as an excellent resource for classrooms, immersion trips, parish-based discussion groups, or nonprofit organizations looking to probe the issue more deeply.”