Biography: Dr. Ehsan Ahmadi is an Assistant Professor of Urban Design at the School of Architecture, University of Tehran, in Iran. He was previously a postdoctoral researcher at the Centre for Land Use Planning and Urban Studies (YTK) at Aalto University, Finland. While there Dr. Ahmadi, took part in two projects: urban safety of Espoo city centre and a comparative study of child-friendliness of Helsinki and Tokyo metropolitan areas founded by the Academy of Finland. He holds an MSc in Architectural Engineering from the University of Tehran, Iran, and a Ph.D. in Community Planning from Nagoya University, Japan. His research focuses on environmental psychology, participatory urban design, and sustainability, with a particular interest in Child-Friendly Cities. He has taught several courses at both undergraduate and graduate levels, including Environmental Psychology, Urban Design Methods and Techniques, Urban Design Studio on Revitalization and Regeneration, and Urban Design Studio on Sustainability and Energy.