| Jeff Johnson | Jeff Johnson is president and principal consultant at UI Wizards, Inc., a product usability consulting firm (www.uiwizards.com). He has worked in the field of Human-Computer Interaction since 1978--as software designer and implementer, usability tester, manager, researcher at several computer and telecommunications companies, and consultant. In the course of his career, he has written many articles, cowritten several books, and given numerous presentations on a variety of topics in Human-Computer Interaction. |