This volume analyzes the function of informal institutions in Latin America and how they support or weaken democratic governance. Drawing from a wide range of examples—including the Mexican dedazo, clientelism in Brazil, legislative "ghost coalitions" in Ecuador, and elite power-sharing in Chile—the contributors examine how informal rules shape the performance of state and democratic institutions, offering fresh and timely insights into contemporary problems of governability, "unrule of law," and the absence of effective representation, participation, and accountability in Latin America.