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 early beginnings as a gifted student to her heroic accomplishments as a prominent mathematician at NASA, this is the story of a groundbreaking American woman who not only calculated the course of moon landings but, in turn, saved lives and made enormous contributions to history.

    A young boy and his father visit the Vietnam Veterans Memorial.

    Eliza Wheeler's book tells the story of what happens when six-year-old Marvel, her seven siblings, and their mom must start all over again after their father has died. Deep in the woods of Wisconsin they find a tar-paper shack. It doesn't seem like much of a home, but they soon start seeing what it could be. During their first year it's a struggle to maintain the shack and make sure they have enough to eat. But each season also brings its own delights and blessings—and the children always find a way to have fun. Most importantly, the family finds immense joy in being together, surrounded by nature. And slowly, their little shack starts feeling like a true home—warm, bright, and filled up with love.