
Ryan Matt Reynolds built a gym, sold his interest and took coaching online. His next subject was the crowded calendar - and the harder work of deciding what deserves a place in it.

David Kadavy is a bestselling author, designer, and creative productivity expert who reverse-engineered design principles for developers, advised a startup that Google acquired, and built a location-independent career from a Nebraska cubicle. His books - including Design for Hackers, Mind Management Not Time Management, and Digital Zettelkasten - have sold 100,000+ copies in 13 languages. He lives in a cabin outside Medellín, Colombia, publishes his income reports publicly, and argues that creativity is about managing your mind, not your calendar.