This book owes much of its evolution to conversations with students and colleagues over more than a decade. I have shared drafts of chapters and the full text with my graduate students at the Joan B. Kroc Institute for International Peace Studies, University of Notre Dame, and with participants of several summer peacebuilding courses at Eastern Mennonite University. The improvement of this text from the feedback received from my students and colleagues is substantial. I should like to thank especially to my colleagues who have responded to specific chapters and ideas. These include Emmanuel Bombande, Aküm Longchari, Jarem Sawatsky, Dekha Ibrahim, Janice Jenner, Harold Miller, Herm Weaver, and Wendell Jones. For wonderful support and suggestions on the overall text, I am deeply indebted to Bernard Mayer, Chris Honeyman, Bill Hawk, Heidi Burgess, and Bill Ury. A very special thanks is due to my colleagues at the Kroc Institute for their feedback as I made my way through the main ideas and text. In particular I am grateful for the comments and insights emerging from the Research Initiative on the Resolution of Ethnic Conflict conferences, and specifically from John Darby and Scott Appleby. I had a wonderful time drawing doodles with my father, John Lederach, whose artistic hand and gift are far more adept than mine and resulted in the great graphics found in this text. The final text owes much to the wonderful editing and careful eye of Maria Krenz. I wish to extend a special note of appreciation to Cynthia Read, Theo Calderara, and Jennifer Kowing at Oxford University Press. Thanks to Happy Trails and the Acoustic Coffeehouse in Nederland, Colorado, for keeping the java flowing and the fires burning while I wrestled with putting ideas to paper. Finally, no writing project of mine reaches fruition without the patience and support of my family—Wendy, Angie and Josh—to whom I am indebted and from whom I receive energy and sustenance. Thank you.