ABOUT THE AUTHOR

Josh Clark is the founder of Big Medium, a design agency specializing in connected devices, mobile experiences, and responsive web design for the world’s most forward-thinking companies. Josh has written four other books, including Tapworthy: Designing Great iPhone Apps (O’Reilly, 2010), and he speaks around the globe on what’s next for digital interfaces. In 1996, Josh created an entirely different kind of user interface: the Couch-to-5K (C25K) running schedule, which has helped millions of skeptical exercisers take up jogging. (His motto is the same for fitness as it is for software user experience: no pain, no pain.)