"You've likely heard of the historic Apollo 13 [mission. But do you know about the mathematical genius who made sure that Apollo 13 returned safely home? As a child, Katherine Johnson loved to count. She counted the steps on the road, the number of dishes and spoons she washed in the kitchen sink, everything! Boundless, curious, and excited by calculations, young Katherine longed to know as much as she could about math, about the universe. From Katherine's...

"Before John Glenn orbited the Earth or Neil Armstrong walked on the moon, a group of professionals worked as "Human Computers," calculating the flight paths that would enable these historic achievements. Among these were a coterie of bright, talented African-American women. Segregated from their white counterparts by Jim Crow laws, these "colored computers," as they were known, used slide rules, adding machines, and pencil and paper to support America's...

In 1969 history was made when the first humans stepped on the moon. Back on earth, one woman was running the numbers that ensured they got there and back in one piece. As a child, Katherine Johnson loved maths. She went on to be one of the most important people in the history of space travel. Discover her incredible life story in this beautifully illustrated book complete with narrative biography, timelines and facts.

"Katherine estaba convencida de que las mujeres podían ser lo que quisieran, ¡y decidió demostrarlo!" -- Biography of NASA mathematician Katherine Johnson.

Biography of the African-American man who, as a self-taught mathematician and astronomer, helped survey the site of the Nation's Capitol and published several popular almanacs.