This volume offers a crucial examination of right-wing extremism, supported by detailed empirical analyses of right-wing militants’ experiences within and outside their organizations. The authors delve deeply into the motivations that prompt initial membership in these groups, the elements that make membership appealing, and the factors that ultimately cause members to leave. Interpreting the present empirical data within their psychological theory of radicalization, the authors determine the commonalities and differences between instances of radicalization and derive policy-relevant implications to combat right-wing extremism. In a turbulent global environment where this strain of extremist ideology has gained more mainstream popularity, this book is a critical and timely addition to scholarship on radicalization by leading experts in the field.