Written by a team of experts, this text introduces all of the main competing theoretical approaches to the study of the state, including pluralism, Marxism, institutionalism, feminism, green theory and more. A brand new 'issues' section enables readers to apply these key concepts and theoretical approaches to important developments in the state today. This new edition offers: - Coverage of all key empirical and theoretical developments in the field, with analysis of the impact of globalisation, global financial upheavals, Brexit, Covid-19 and social movements such as Black Lives Matter - A wide range of voices, perspectives, contemporary and historical examples, giving readers a holistic overview of the field, as well as deeper dives into key issues - Brand new chapters on sovereignty, security, territory, capital, nationalism and populism - Guided further reading suggestions at the end of each chapter Providing both a firm grounding in the key concepts and critical engagement with contemporary controversies and debates, this text is ideal for those studying all aspects of the state.