In this book, tech and business leaders reveal a secret of major companies: moving fast enough to solve big problems. Beth Kustok, CEO of General Electric, praises it as a step-by-step guide to doing important work quickly. Eric Ries, author of The Lean Startup, highlights its formula for testing ideas in just five days, saving effort and money. Charles Dahigue, author of The Power of Habit, emphasizes the importance of adopting the right habits for success. Tim Brown, CEO of IDEO, endorses the method for addressing product challenges. Ev Williams, founder of Medium and Twitter, recommends it for faster, better quality production.