Jeong Kyeongja (F) majored in Human Resources Development for Women at the Graduate School of Sookmyung Women's University. She was the first to create a professional organizer job in Korea. At present, she is the president of the Korean Association of Professional Organizers and the CEO of Dumin. She has appeared on numerous TV programs including Ask Anything on KBS, Let Me Home and Little Big Hero on tvN, and The CEO on MBN. She also founded Kongal, a volunteer organization of professional organizers, to improve the living conditions of low-income families and provide free training on organizing. Books she has written include Infant Massages for Growth and Development in Stages and Baby Yoga with Mom and Dad.