As Max Abrahms tells the tale, terrorism, which is the use of violence against civilian targets to achieve positive political objectives, is doomed to failure. He supports this observation with quantitative and qualitative analysis, which draws heavily on contemporary history and the literature on terrorism and political psychology, to explain how and why terrorism fails as a strategy. The work is sophisticated. It incorporates explanations of phenomena occurring at various levels of analysis to explain why terrorism is a losing proposition. Abrahms is careful not to suggest that attacking government or military targets is a recipe for success or to assess if only an occasional attack against civilians will doom some rebel enterprise. Nevertheless, he is unequivocal in his assessment that killing innocents is simply a recipe for political failure.