John M. Carroll is Distinguished Professor of Information Sciences and Technology at the Pennsylvania State University. His research is human-centered design of information technology, especially tools for collaborative and collective activity, and the transformative possibilities and risks entrained by new technology. Carroll serves on several advisory and editorial boards for journals, handbooks, and series. He is editor of the Synthesis Lectures on Human-Centered Informatics. Carroll received the Rigo Award and the CHI Lifetime Achievement Award from ACM, the Silver Core Award and Pioneer in HCI Award from IFIP, the Goldsmith Award from IEEE, an honorary doctorate in engineering from Universidad Carlos III de Madrid, and the Faculty Scholar Medal in Social and Behavioral Science from Penn State. He is a fellow of AAAS, ACM, IEEE, IFIP, the Human Factors and Ergonomics Society, the Psychonomics Society, the Society for Technical Communication, and the Association for Psychological Science.