The main objective of this study is to provide insight into how countries have so far grappled with the challenges of anti-corruption policy making and implementation, to analyse what this experience can tell us and to identify issues for consideration in future policy making, both for States Parties and for development partners. The purpose is to explore in depth how anti-corruption policies or strategies came into being in six countries, what the catalysts and driving forces were, which criteria were used to select and prioritise reforms, how they were implemented, and what the role of development partners was in the overall process. The study is based on an extensive literature review, empirical research through in-depth country case studies from Georgia, Indonesia, Nicaragua, Pakistan, Tanzania and Zambia, as well as the concluding analysis of what can be learned from this experience.