Ph.D. in Human-Computer Interaction (2008)
School of Computer Science, Carnegie Mellon University

MDes in Interaction Design (2000)
School of Design, Carnegie Mellon University

BFA in Industrial Design (1995)
Seoul National University

former CIO/Director of Neowiz Internet (2009-2011)

ACM SIGCHI Program Chair (2013~)
ACM SIGCHI Associate Chair (2011~)