This volume offers a collection of essays useful for analyzing and comparing terrorist movements, especially in relation to Islamic terrorism. But its scope goes well beyond that, offering theoretical insights into the concept of terrorism, debating the puzzling phenomenon from various traditions of thought, including analyses of writings by Jürgen Habermas, Michael Walzer and Eric Weil. It examines the uses of violence by terrorism: the “who,” the “how” and the “when.” Present day terrorism is a modern phenomenon to be distinguished from classical insurgency, revolution,...