Our collective knowledge on both why identity-based mass violence (IBMV) occurs and how it can be addressed in cities is made stronger when informed by more-complete perspectives and expressions of evidence. To that end, this volume has brought together expert analysis and testimony from around the world and from distinct, yet related, fields of practice to demonstrate the critical role of cities in reducing IBMV. Honoring the complexity of the challenges IBMV presents, this volume set out to disrupt traditional approaches to gathering academic and policy insights; in addition to peer-reviewed research, contributors explored identity-based mass violence through analysis, art, storytelling, communication, and community building. The volume results in a call to action for those who know our status quo has failed to reduce structural and acute forms of violence, so often rooted in identity. This volume calls on each of us to truly see one another and to lean into the hope that through working together we can make this world a place of promise and prosperity for all.