This compendium collates current tools and resources on quality improvement developed by the WHO Service Delivery and Safety Department and provides examples of how the tools and resources have been applied in country settings. The target audience for this document are ministries of health, facility quality improvement teams, researchers and development agencies. WHO technical programmes, regional and country offices can also use the document in their technical cooperation work with the identified audience. Those working to improve the quality of health service delivery can also make good use of this resource