Designer/researcher working on playful, gameful and motivational design for human flourishing. I provide insight, strategy, user experience design and training on crafting engaging products and services for clients worldwide, including the BBC, BMW, Deutsche Telekom, Greenpeace, KLM, Novartis, Otto Group, Tui, and numerous startups. An internationally sought-after speaker, I am regularly invited to keynote and present at venues like Lift, UX London, GDC, Interaction, Web Directions, Google, IDEO, or Microsoft Research, and have been featured on TED. My co-edited book "The Gameful World" appeared with MIT Press in 2015.