Introduce young readers to a true STEM hero with this illustrated picture-book biography that combines counting-play with real-world science. Bright, engaging art and simple, narrative text follow a curious child who loves numbers and grows into a mathematician whose work helped bring astronauts home. Designed for early readers and families, this title encourages math confidence, celebrates problem-solving, and inspires interest in space and history — an educational and heartening pick for storytime, classroom units on women in science, and any shelf aimed at sparking a love of numbers.