Thomas Tullis I’m Tom Tullis, a User Experience Research Consultant, Author, and Speaker. I have over 40 years of experience in the human factors, usability, and UX research fields. I’ve worked on things as diverse as the design of NASA’s International Space Station to a wide variety of web sites and apps. In addition to 70+ publications in the field, I’ve co-authored two books: Measuring the User Experience and Beyond the Usability Lab. In my career I’ve conducted or overseen thousands of usability tests. And I’ve been teaching and conducting seminars for over 25 years.