The Mekong Program on Water, Environment and Resilience (M-POWER) is a network of organizations and individuals collaborating to democratize water governance in the Mekong Region. Since 2006, M-POWER has developed and implemented a wide range of activities across Cambodia, southern China, Laos, Myanmar, Thailand and Vietnam. Younger and older scholars, practitioners and ex-officials have probed water resources decision-making, prodded policy actors on their positions, and proposed ways for more inclusive, deliberative and adaptive water governance. Some of these engagements with the politics of infrastructure development and water resources management are reflected in analysis on the ecosystems, peoples, economies and politics of the Ayeyawady–Irrawaddy, Nu–Salween–Thanlwin, Chao Phraya, Lancang–Mekong and Red river basins. Democratizing Water Governance (2007) examined the relationships between democratization and governance through a series of sectoral reviews from hydropower and fisheries, through watershed management and urban water supply, to flood protection. Contested Waterscapes (2009) highlighted the importance of power and politics in water governance. In Water Rights and Social Justice (2011), the livelihoods of the overlooked took center stage—fishers and farmers impacted by hydropower development, and upland farmers disempowered by state watershed management policies. Governing the Mekong (2013) collected the experiences of M-POWER research fellows engaged in action-oriented research. These contributions highlighted the politics of representation, expertise and knowledge in water-related decision-making. This final book in the series, Water Governance Dynamics in the Mekong Region, brings us full circle. A decade on and it is far from obvious that the promises of democratization and improved public accountability are inevitable. The need for multi-disciplinary scholarship and constructive contestation remains.