Dr. Hsieh is an Associate Professor in the Department of Human Centered Design & Engineering (HCDE) and an Adjunct Associate Professor in the Paul G. Allen School of Computer Science & Engineering at the University of Washington. His research focuses on human–computer interaction, social computing, behavior change and related topics. Dr. Hsieh has served as Associate Chair for ACM CHI and Program co-Chair for HCI Consortium. He has received research grants from the National Science Foundation, the National Institute of Health, the Center for Disease Control and Prevention, Nokia, and Intel. Gary received his PhD in Human–Computer Interaction from the School of Computer Science at Carnegie Mellon University.