Counting on Katherine

Written by Helaine Becker | Illustrated by Dow Phumiruk | Published by Henry Holt and Company

You've probably heard about the Apollo 13 Space Mission, but do you know about the mathematical genius who made sure that Apollo 13 returned safely home? Her name was Katherine Johnson and from her very first years, she loved counting. It was this love of math that led her to become one of NASA's great heroes for both her knowledge and her reliability.