Conference Theme: Reflecting the Past and Embracing the Future. The 2021 Annual Meeting of the International Society of the Learning Sciences (ISLS) is the first of its kind, the first of a new series of annual events that will bring together the international community of the Learning Sciences as a whole. This is a milestone in the evolution of our community and a good reason to reflect on and celebrate our achievements in the past, and to embrace and envision a bright future.