Assoc. Prof. Dr.Chailerd Pichitpornchai, M.D., director of the Institute for Innovative Learning, Mahidol University was invited to be a guest speaker on ” The Leader of Change in the 21st Century”, of Intermediate Public Health Executive Program, batch 36th, group 1, on May 22, 2023 at Boromarajonani College of Nursing, Nonthaburi Province, via zoom meeting.