This guide is targeted at national stakeholders, donors and international actors involved in corruption measurement and anti-corruption programming. It explains the strengths and limitations of different measurement approaches, and provides practical guidance on how to use the indicators and data generated by corruption measurement tools to identify entry points for anti-corruption programming. A Users’ Guide to Measuring Corruption is one of the first attempts to systematically explore the practical challenges and opportunities of measuring what is increasingly viewed as one of the major impediments to development: corruption. Based on a review of the literature and bolstered by more than 30 original interviews with experts in the field, A Users’ Guide provides government, civil society and the private sector with examples of “good practices” in measuring corruption.