Approaching the concept of Islamic constitutionalism from a comparative perspective, this thought-provoking study by Antoni Abat i Ninet and Mark Tushnet uses traditional Western political theory as a lens to develop a framework for analyzing the events known as the ‘Arab Spring’. Writing with clarity and insight, the authors place Western and Arabic traditions into a constructive dialogue. They focus on whether we can develop a ‘theory of revolutions’ that helps us understand events occurring at divergent times at geographically separate locations.