The Simple Guide to the UN Treaty Bodies, produced by the International Service for Human Rights, aims to provide human rights defenders and their organisations with a broad overview of the UN human rights treaty body system and its functions to support their effective engagement with the treaty bodies. The Guide also contains other information that defenders may find useful, such as the relationship between the treaty bodies and other UN human rights mechanisms, relevant developments related to the harmonisation of the working methods of the treaty bodies, and a glossary and e-resources for further reference.