In this nonfiction picture book, young readers learn about the COVID-19 pandemic and other historical pandemics. Using visual aids, diagrams, and straightforward text, the book explains what happens when a group of people get sick; the difference between an outbreak, an epidemic, and a pandemic; how pandemics spread; and what scientists have learned from them. It then breaks down the current COVID-19 pandemic, beginning with what a coronavirus is, how it affects individuals, what individuals can do to stay safe, and the role vaccines play in keeping individuals from getting severely ill. Includes a timeline of historical pandemics, a handwashing diagram, and a glossary.