Introduction.- Water resources in Central Asia: Historical overview.- Legal framework of interstate cooperation on water resources of Central Asia.- Institutional cooperation on water resources in Central Asia.- Transboundary rivers in Central Asia: Cooperation and conflicts among countries.- Application of the UNECE Environmental Conventions in Central Asia.- Water-Energy-Food-Environmental Nexus in Central Asia: From Transition to Transformation.- U.S. Policy in Central Asia: Water-Energy Nexus Priorities.- German water resources policy in Central Asia.- Water Transboundary Policy of Kazakhstan and China.- Water resource policy of Kazakhstan.- Contemporary Water Policy of Kyrgyzstan.- Impact of Water and Energy Problems on the Economic Development of Uzbekistan.- Soft Power of Tajikistan on the Water Agenda: Cross-Scale Dynamics.- Turkmenistan water resghources policy in Central Asia.- Afghanistan water resources policy in Central Asia.- Conclusions.