It would be impossible to fully capture in these pages the urgency and energy of the months of 2020. Entire books have been written about the development of the vaccine, including a book co-authored by Uğur and Özlem, and one by Albert Bourla, Pfizer’s chief executive officer. What I will say here is this: It was a stunning effort, one that required courage, expertise, decisiveness, and precision. I saw these traits not only at the highest levels of leadership—Albert, Uğur, and Özlem—but also among everyone who worked on this project: employees, contractors, suppliers, and other professionals.