His research in human-computer interaction focuses on design prototyping and physical computing tools. His prototyping tools have been used at companies such as Nokia, Leapfrog, IDEO, and Frog design. He received degrees in Communication, Digital Media Design, and Computer and Information Science from the University of Pennsylvania in 2002, and a PhD in Computer Science from Stanford University in 2009. He is a recipient of the UIST 2006 Best Paper, CHI 2007 Best Paper and UIST 2008 Best Student Paper Awards. Björn was Editor-in-Chief of Ambidextrous magazine, Stanford's Journal of Design. Before moving to the Bay Area, Björn had a successful career as an electronic musician and record label owner. Past Talks