Jeff Johnson is an Adjunct Professor of Computer Science at the University of San Francisco. He is also President and Principal Consultant at UI Wizards, Inc., a product usability consulting firm.  After earning B.A. and Ph.D. degrees from Yale and Stanford Universities, he worked as a UI designer and implementer, engineer manager, usability tester, and researcher at Cromemco, Xerox, US West, Hewlett-Packard Labs, and Sun Microsystems. In the late 1980s and early 1990s he was Chair of Computer Professionals for Social Responsibility. In 1990, he co-chaired the first Participatory Design conference, PDC'90. He has taught at Stanford University and Mills College, and in 2006 and 2013 taught HCI as an Erskine Fellow at the University of Canterbury in New Zealand. Since 2004 he has served on the SIGCHI Public Policy Committee. In 2013 and 2017 he presented in the prestigious Authors@Google talk series. He is a Distinguished Member of the Association for Computing Machinery, a member of the ACM SIGCHI Academy, and in 2016 received SIGCHI's Lifetime Achievement in Practice Award. He has authored or co-authored many articles and chapters on Human-Computer Interaction, as well as the books GUI Bloopers, Web Bloopers, GUI Bloopers 2.0, Designing with the Mind in Mind, Conceptual Models: Core to Good Design (with Austin Henderson), Designing with the Mind in Mind 2nd edition, Designing User Interfaces for an Aging Population (with Kate Finn), and Designing with the Mind in Mind 3rd edition. He was interviewed by for three podcasts about his co-authored book Designing User Interfaces for an Aging Population: • Tech-Enhanced Life (https://www.techenhancedlife.com) podcast "Designing for Older Adults": https://www.techenhancedlife.com/articles/designing-older-adults-interview-jeff-johnson • Adobe's "Wireframe" podcast "Why can't dad unmute himself on Zoom?: https://xd.adobe.com/ideas/perspectives/wireframe-podcast/is-design-failing-the-aging-elderly-s03-e02 • "The Informed Life" podcast "Design for Aging": https://theinformed.life/2020/10/11/episode-46-jeff-johnson Johnson is married to Karen Ande, a documentary photographer who has documented AIDS-orphan and poverty relief projects in Africa, Central America, Asia, and the U.S. (see KarenAnde.com).