In just 6 years, Facebook grew to 2 billion users and 14,000 employees. How? Well first, they hired COO Sheryl Sandberg. And she knew that to lead a fast-changing organization, you have to be as skilled at breaking plans as you are at making them. Great scale leaders know how to pivot. Every day, there are new competitors, new threats, new opportunities. There’s no simple, straightforward set of marching orders. It’s more like a dogfight. You and your team will be flying upside down and at an angle sometimes. Sandberg shares her practical, tactical on-the-ground lessons she learned at both Google and Facebook — everything from hiring people for roles that never existed before, celebrating birthdays for an enormous team, and navigating make-or-break crises as a management team. She also reveals the slow, professional courtship of Mark Zuckerberg.