📘 Author of Practical UI ⚡️ UX & UI design tips, inspiration, & news 🤟 Pushing pixels since 2005 ⚙️ Specialised in UI design & design systems

Bitcoin, security, entrepreneur, coder, hacker, pundit, humanist, pacifist. Working on crypto-currencies, wrote Mastering Bitcoin http://bitcoinbook.info

Co-founder, CEO of Airbnb

Founder of altMBA and Akimbo. Daily blogger, teacher, speaker, 20 bestsellers as well...

Enthusiast.

Dad, husband, entrepreneur.