The University of Balamand, Issam Fares Faculty of Technology and cewas Middle East, the international centre for water management services have offered a 3-day Workshop in Sanitation Systems and Technologies based on the Compendium of Sanitation Systems and Technologies of the Swiss Federal Institute of Aquatic Science and Technology (Eawag) in 2018. The compendium was published for the first time in 2008, offering a systematic overview on different sanitation systems and technologies, and describing a wide range of available tried and tested sanitation technologies. This structured source of information has become a key and useful planning tool for making more informed decisions in the sanitation sector and is also available in French and Arabic. The ToT Workshop on Sanitation Systems and Technologies has been conceived based on the Sustainable Sanitation and Water Management (SSWM) training, which has been successfully taken by more than 650 participants in Europe, Asia, Africa, Latin America, including the Middle East. The training builds on the SSWM Toolbox (www.sswm.info) that provides practitioners with tools for the planning and implementation of sustainable sanitation systems at local level.