Book excerpt: Land degradation reduces food productivity and security, disrupts vital ecosystem functions and increases carbon emissions and vulnerability to climate change. 52 percent of the land used for agriculture worldwide is estimated to already be affected. Studies indicate that land degradation directly affects 1.5 billion people around the world. Despite the seriousness of the issue, there is still limited access to resources and planning tools for sustainable land management. Between 2015 to 2019, FAO implemented the project ''Decision support for mainstreaming and scaling up of sustainable land management (DS-SLM)’’ at a global level across 15 countries. The aim of the project was to improve access to information on land management best practices. The final evaluation examines the impacts and sustainability of the project results. What has contributed to, or hindered, the implementation of the planned activities? What has been the effect of linkages and partnerships between the project and other major country initiatives?