Ella Schwartz is the award-winning author of Can You Crack the Code?: A Fascinating History of Ciphers and Cryptography, which won the AAAS/Subaru Prize for Excellence in Science Books. In addition to writing books, Ella is a cybersecurity warrior interfacing with the US federal government on strategic technology initiatives. She lives in New York with her husband and three sons. She invites you to visit her at ellasbooks.com.

Dow Phumiruk is the award-winning illustrator of Counting on Katherine: How Katherine Johnson Saved Apollo 13, which won the Bank Street College of Education Cook Prize and was named an NSTA Outstanding Science Trade Book as well as an NCTM Mathical Honor Book, among many other honors; An Equal Shot: How the Law Title IX Changed America; and Maya Lin: Artist-Architect of Light and Lines, which was an Amazon Best Book of the Year and an NCSS Notable Social Studies Trade Book for Young People. A general pediatrician with a passion for art, Dow lives in Colorado with her family. She invites you to visit her at artbydow.com.