As a global teacher training platform that has only been live for three years, IIOE still has a long way to go to achieve its goal of efficiently realizing digital transformation in empowering development. IIOE is still in the process of continuous practice, exploration, and iteration. In the future, how to scale up IIOE's operations, how to emphasise the quality of IIOE's activities, and how IIOE and UNESCO-ICHEI could extend their current role and become a think tank are important topics for the next stage of IIOE. The current development practice of IIOE proves that "things are done by people, and roads are built by people". I believe that as long as we keep up with the trends of global development, and closely align with partners' needs, operate with a scientific attitude, exert a spirit full of wisdom and uphold perseverance, down-to-earth, step-by-step, IIOE can grow into a flagship and active agent for the digital transformation of higher education in developing countries in the future.

——Director, LI Ming UNESCO-ICHEI

Acknowledgements: The Co-constructing a global ecosystem for higher education digital transformation —— International Institute of Online Education Developmental Report (2019-2022) would not be what it is without the contributions from all members of UNESCO-ICHEI, partners of IIOE, and close collaborators. A special thanks went to their various forms of support.