When corruption is exposed, unknown aspects are revealed which allow us to better understand its structures and informal norms. This book investigates the hidden order of corruption, looking at the invisible codes and mechanisms that govern and stabilize the links between corrupters and corruptees. Concentrating mainly on democratic regimes, this book uses a wide range of documentation, including media and judicial sources from Italy and other countries, to locate the internal equilibria and dynamics of corruption in a broad and comparative perspective. It also analyses the Transparency International Annual Reports and the daily survey of international news to present evidence on specific cases of corruption within an institutional theory framework.