Sarah Albee is the New York Times best-selling author of more than 100 books for kids, including Bounce: A Scientific History of Rubber, Troublemakers in Trousers, and Zero! The Number That Almost Wasn’t. She lives in New York City with her husband, a high-school principal. They have three grown children. Sarah loves writing books where science and history overlap. Born in Taipei, Taiwan, and raised in Jacksonville, Florida, Chris Hsu is incessantly inquisitive about and heavily influenced by history, art history, science, classical music, psychology, and sports. In addition to book illustration he is an animation background artist, having worked on animated series such as Archer and Hit-Monkey. He is based in the Southeast with his wife and two daughters. He is the illustrator of Zero! The Number That Almost Wasn't, I Am Someone Else, The Boo-Boos That Changed the World, and Madame Speaker. www.chrishsu.net