The COVID-19 pandemic isn't over. But even as governments around the world try to get it under control, they're also starting to talk about what happens next. How can we prevent another pandemic from killing millions of people and devastating the global economy? Can we even hope to accomplish this? Bill Gates believes the answer is yes, and he has written a largely upbeat book that lays out clearly and convincingly what the world should learn from COVID-19, explains the science of fighting pandemics, and suggests what all of us can do to help prevent another one.