This webinar is designed to give an overview of the incorporation of model-based geostatistics (MBG) into the Tropical Data service. Speakers will give presentations on the background, technical implementation and rationale for using this analysis approach, and a number of case studies will be presented by health ministry partners to provide examples of how MBG has been employed so far. The webinar will end with a Q&A session with panellists from WHO, Tropical Data, Sightsavers, representatives from Tanzania, Malawi and Nigeria health ministries, and the University of Lancaster.