The case studies are inspired by social movement theory, but they also critique and expand the horizons of the theory's classical concepts of political opportunity structures, collective action frames, mobilization structures, and repertoires of contention based on intensive fieldwork. This strong empirical base allows for a nuanced understanding of contexts, culturally conditioned rationality, the strengths and weaknesses of local networks, and innovation in contentious action to give the reader a substantive understanding of events in the Arab world before and since 2011.