John Keane is a prominent political theorist and scholar known for his work on democracy and civil society. He has contributed significantly to the understanding of political concepts and has written extensively on the nature of power and governance. His research often explores the relationship between democracy and the role of citizens in shaping political life. Keane is also recognized for his concept of "monitory democracy," which emphasizes the importance of oversight and accountability in democratic systems. He has authored several influential books, including The Life and Death of Democracy, which examines the historical evolution of democratic practices around the world.