□ Session1. Keynote Speech
   - The longitudinal effects of preschool education on children's development: evidence from the English EPPSE study / Prof. Kathy Sylva(University of Oxford)
   - Ongoing reforms of the German ECEC system: The role of longitudinal studies / Prof. Bernhard Kalicki(The German Youth Institute, DJI)
□ Session2. Special Speech
   - Factor Analysis of the Need for Childcare Leave Policies / Dr. Nayoung Kim(KICCE)
   - Allergic Disease in Children from PSKC Study / Prof. Soo-Jong Hong(Asan Medical Center)
□ Session3. Presentation of Academic Papers
   - Topic 1. Children's problem behaviors 
   - Topic 2. Children's health
   - Topic 3. Children's happiness & social skills
   - Topic 4. Longitudinal approach etc.