The Sudd Monograph is a key output of the NBI’s Wetlands Programme support to South Sudan through the South Sudan's Wetlands Working Group. This “Volume 3 – Sudd Wetlands Monograph” is the 3rd of a 4-part series that aims to develop a comprehensive information and knowledge base on the existing conditions of the Sudd that can be used as an aid by decision makers to help guide future planning and development initiatives. Supplementary volumes follow with specific focus on detail aspects such as hydrological modelling, ecological and physical characteristics, and environmental flows. These documents will be important sources from which to reference critical information that is required to ensure sound management of the Sudd.