The United Nations World Water Development Report  The United Nations World Water Development Report (WWDR), is the UN-Water flagship report on water. It is a comprehensive review that gives an overall picture of the state, use and management of the world’s freshwater resources and aims to provide decision-makers with tools to formulate and implement sustainable water policies. From 2003 till 2012, the WWDR was produced and released every three years following a comprehensive approach. As a result of a Global Stakeholder Survey in 2012, UN-Water decided to change the periodicity of the WWDR into an annual production with a thematic focus on different strategic water issues. The content produced for the WWDR serves as basis for the celebrations of World Water Day (22 March) and related discussions throughout the year. Through a series of assessments, the Reports provide a mechanism for monitoring changes in the resource and its management and tracking progress towards achieving targets, particularly those of the 2030 Agenda for Sustainable Development. The Reports also offer best practices as well as in-depth theoretical analyses to help stimulate ideas and actions for better stewardship in the water sector. This authoritative publication is the result of a highly concerted process among partners and members comprising UN-Water under the coordination of WWAP. WWAP Case Studies   One of the key objectives of WWAP is to help countries improve their self-assessment capability by building on existing strengths and experiences. WWAP fulfils this mission by assisting in the preparation of case studies in countries around the world in order to highlight the state of water resources where different physical, climatic and socio-economic conditions prevail. In this regard, case studies show the diversity of circumstances and different human needs. The second purpose of the case studies is to highlight the challenges that need to be addressed in the water resources sector. In the process, the skills and experience of both local water professionals and policy-makers are engaged and enhanced. WWAP is both global and local in scale, for it must check the accuracy of the big picture on the basis of snapshots of water in the field. In the global strategy to improve the overall quality of water resources, local actions often present the starting point the most fruitful efforts. The WWAP case studies aim to provide a snapshot of those efforts while showing the significance of the decisions taken at local, sub-national and national levels. The lessons learned, from both successes and failures, may be shared with other countries interested in addressing such issues. SDG 6 – Synthesis Report   The SDG 6 Synthesis Report aims to provide an overview of the status of SDG 6 implementation at the global and regional levels, as well as some comprehensive information about how SDG 6 is interlinked to other SDG targets and indicators of the Agenda 2030 and the overall sustainability challenges that nations around the world are faced with.