Over a course of one month, between 6 and 25 May 2021, over 50 reviewers from around the world attended the first CoreTrustSeal Assembly of Reviewer Workshop series, organised by the teams of the FAIRsFAIR project and CoreTrustSeal. DANS is involved as a coordinator and project partner in the FAIRsFAIR project, and through participation in the board of CoreTrustSeal.