The United Nations (UN) is a highly complex organisation. It can be difficult for civil society advocates to know where to start and the best way to exert any influence. This toolkit will help civil society organisations (CSOs) and other stakeholders to navigate the politics and structure of the UN system and its main decision-making bodies. It will also provide a roadmap to help guide CSOs through the main types of UN agreements and how they are negotiated, with a focus on financing for development and global economic governance, in particular relating to debt issues.