I started following Epstein’s work after watching his fantastic 2014 TED talk on sports performance. In this fascinating book, he argues that although the world seems to demand more and more specialization—in your career, for example—what we actually need is more people “who start broad and embrace diverse experiences and perspectives while they progress.” His examples run from Roger Federer to Charles Darwin to Cold War-era experts on Soviet affairs. I think his ideas even help explain some of Microsoft’s success, because we hired people who had real breadth within their field and across domains. If you’re a generalist who has ever felt overshadowed by your specialist colleagues, this book is for you.