The 8th World Water Forum Thematic Commission invites contributions from all around the world to the Thematic Sessions. Participation is encouraged from policy/decision-makers, academics, civil society, end-users and practitioners from the public and private sectors, both within and outside the water sector. Besides attending the debates during the event, people and organizations can enrich the content of the Forum by volunteering as a coordinator, moderator or panelist, and by suggesting relevant case studies highlighting lessons that will contribute to the implementation of international frameworks such as the SDGs. Register your interest online before 23 August 2017 at https://sites.google.com/view/tcsessions. Come and join voices from all corners of the globe to mobilize cooperative action for water.