When Mary Jackson was growing up, she thought being an engineer was impossible for her. Why? After all, she was fantastic at math and science. She worked really hard to learn all she could in school. Why did this smart little girl think she couldn't be an engineer? Elementary aged readers explore America's history of segregation through the life of Mary Jackson, who overcame challenges to become the first African American women to work at NASA! In Human Computer: Mary Jackson, Engineer, readers ages 5 to 8 learn what it was like for Mary Jackson to work in a place where she couldn't eat in the same lunchroom or even use the same bathroom as her white coworkers. But when she glimpsed an opportunity to work with the math and science she loved to do, she decided nothing was going to stop her.