Crossing the Divide: Intergroup Leadership in a World of Difference Edited by Todd L. Pittinsky Today's leaders face a daunting challenge in their quest to create positive change: how to lead in a world of difference. Traditional models of leadership, often based in "us versus them" thinking, offer little guidance in a world in which the "us" in question is ever more diverse. How can leaders manage the tensions and talents of the many sub-groups that make up most organizations and communities today - and mobilize these groups to work together toward common goals? In Crossing the Divide, editor Todd Pittinsky of Harvard's Kennedy School of Government brings together a powerful collection of essays outlining a new model - Intergroup leadership - that explores how to unify subgroups while leveraging what makes them different. Though multidisciplinary contributions from world-renowned thinkers, scholars and practitioners, Crossing the Divide marries cutting-edge theory with compelling case studies and practical strategies to explore what intergroup leadership is, why it matters, and how it is implemented. Crossing the Divide draws on experience and research in settings that range from multi-ethnic countries to multi-unit corporations and from elected legislatures to religious communities. The result in a groundbreaking book that gives leaders the strategies they need to lessen ill will between groups, affirm identity, cultivate trust, and foster true collaboration. With contributors from around the globe, and business, political, and national examples from Africa, Europe, and the United States, Pittinsky weaves together new ways of understanding how groups do - and don't – work together. Using these concepts, leaders can find new paths to uniting their varied and sometimes clashing followers into effective, collaborative communities. As diverse in content and scope as the world we live in, Crossing the Divide is a timely volume that underscores the urgency of leading by uniting - for the common good. Todd L. Pittinksy is an Associate Professor of Public Policy at the Harvard Kennedy School of Government and Research Director of Harvard's Center for Public Leadership. His research explores allophilia (positive intergroup attitudes) and how leaders can use them to bring groups together.