This book presents Encounter Theory; an approach grounded in engagement with difference and the principle of nonviolent conflict transformation. It offers scholars, peacebuilders, and students a comprehensive way to understand and practice violence transformation by drawing on diverse frames, concepts, and pedagogies from multiple disciplines. Schmitz, Standish, and Sloan, who work across personal, interpersonal, community, and international contexts, aim to create a platform for addressing violence in society, culture, and the self in the twenty-first century. At its core, Encounter Theory calls for meeting others and their deeply held beliefs within a space that is non-dominatory and non-discriminatory, fostering recognition and appreciation. Through such encounters, individuals move toward relationality, building bonds of understanding and re-humanization. The book argues that creating a nonviolent world requires tools that allow us to continually and relentlessly engage with difference, without resorting to violence. The book begins by introducing the foundations of Encounter Theory and then expands its application through an interdisciplinary lens. It explores the breadth of human harm and offers critical perspectives that enable encounter to become a lived practice. Later chapters examine emancipatory peace frameworks, critique limiting approaches, and synthesize insights to illustrate how encounter can serve as a transformative method for addressing violence. Ultimately, the book positions Encounter Theory not only as a theoretical construct but as a practical pathway toward nonviolence and deeper human connection.