From the New York Times bestselling authors of Sprint comes a simple 4-step system for improving focus, finding greater joy in your work, and getting more out of every day."A charming manifesto—as well as an intrepid do-it-yourself guide to building smart habits that stick. If you want to achieve more (without going nuts), read this book."—Charles Duhigg, bestselling author of The Power of Habit and Smarter Faster Better Nobody ever looked at an empty calendar and said, "The