Since the establishment of the Islamic Republic of Iran in 1979, the Iranian political system has been subject to diminishing legitimacy. In recent years, various waves of protest have spread across the country and the question of the resilience of the revolutionary state becomes more pressing by the day. Drawing from extensive fieldwork and rare primary sources, Mehran Kamrava provides here a comprehensive and accessible analysis of the Iranian state and the various formal and informal institutions through which it operates. The book offers an in-depth analysis of the Iranian state, from the Constitution to the powers and offices of the Supreme Leader, the Islamic Revolutionary Guard Corps to the several intelligence agencies. Paying careful attention to the nuances of Iranian politics, Kamrava also highlights how factional politics and rentierism have served to enhance state resilience. Presenting a range of original insights, this book is invaluable to understanding the inner workings of the contemporary Iranian state.