Josh Clark

Josh Clark is principal of Big Medium, a digital agency that helps complex organizations design for what’s next. Josh has over 30 years of experience in emerging technology, user experience, and design innovation. His projects include future-friendly interfaces for AI, connected devices, and websites for many of the world’s biggest companies.

Josh is co-author with Veronika Kindred of the book Sentient Design: Crafting Intelligent Interfaces with AI (Rosenfeld Media, 2026). Josh coined the phrase Sentient Design in 2024 to describe the practice of creating digital experiences that crackle with awareness and agency, adapting to your users in the moment. These are intelligent interfaces: dashboards that design themselves, apps that manifest on demand, agents that just get it done, and much more.

Josh speaks around the world about what’s next for digital interfaces. He has keynoted hundreds of events in over 25 countries, and has offered countless more private workshops and executive sessions. Josh is also author of several other books, including Designing for Touch (A Book Apart) and Tapworthy: Designing Great iPhone Apps (O’Reilly).

Before the internet swallowed him up in the 1990s, Josh was a producer of national PBS programs at Boston’s WGBH. He shared his three words of Russian with Mikhail Gorbachev , interviewed the cabinet secretaries of nine US presidents, and was head writer for a primetime game show.

In 1996, Josh created the “Couch-to–5K” (C25K) running program, which has helped millions of skeptical would-be exercisers take up running. (His motto is the same for fitness as it is for software user experience: no pain, no pain.)

Josh lives, runs, and works in the mountains of Asheville, North Carolina.