3 books · Ages 5–12 · Chapter Books
Robert Burleigh Biographies is a 3-book series for ages 5–12 by Robert Burleigh. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Black Whiteness: Admiral Byrd Alone in the Antarctic and Tiger of the Snows: Tenzing Norgay: The Boy Whose Dream Was Everest are great first picks.
No particular order needed — browse and pick what catches your eye.