This is a story of a little girl who loved to count. She skipped 3 grades in school and by the age of 10 was ready for high school. However, the town’s high school didn’t accept black children, and her father worked overtime to move them to a town with a high school for blacks. She did well and loved math, but there were no jobs for women in research mathematics. So, she became an elementary school teacher, but still dreamed of math. She didn’t give up her dream and eventually worked at NASA as a “computer” -calculating a long series of numbers. Due to her accuracy and leadership skills, she was promoted to the Mercury Project where she worked on John Glenn’s record setting orbit around the Earth. Glenn himself said he wouldn’t fly unless she okayed the numbers. Katherine then went on to work on the Apollo missions. When Apollo 13 got into trouble and was in danger of being lost in space, it was Katherine who calculated a new path to get the astronauts safely back to Earth. (New Jersey Garden State Children's Book Award 2021)