8 books · Ages 4–10 · Chapter Books
Big Words is a 8-book series for ages 4–10 by Doreen Rappaport. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Martin's Big Words: The Life of Dr. Martin Luther King, Jr. and Abe's Honest Words: The Life of Abraham Lincoln are great first picks.
No particular order needed — browse and pick what catches your eye.