This handbook is a product of both the Global Organization of Parliamentarians Against Corruption (GOPAC) and the World Bank Institute (WBI). In this publication, parliaments and their role in fighting corruption get a central role. The handbook discusses firstly parliaments and good governance and the approach of the World Bank regarding this issue. After presenting the causes and consequences of corruption, the work focuses on how to control corruption and highlights the value of a multi-pronged approach. Chapter four shifts the attention to parliaments and coalition building. Tools and tasks play a crucial part in this. Finally, the last chapter examines how to build effective parliamentary networks.