This is the first comprehensive publication analyzing the value added by integrating systemic thinking and peace building theory and practice. Against the background of different case studies, practitioners and scholars frame their various understandings of systemic thinking and present a great variety of systemic concepts, such as systems theory, systemic action research, and constellation work. Furthermore, the book links current discussions about peace building with various systemic discourses. It analyzes to what extent systemic thinking and systemic methods are helpful in further developing existing approaches to conflict transformation.