As a young boy, Jérôme Lejeune wanted to study medicine. When he grew up, not only did he become a doctor, but he made a groundbreaking discovery about Down syndrome and fiercely advocated for every child's right to life. This picture book biography about a Catholic pediatrician who became a pioneer of scientific research will inspire young readers with its remarkable story and stunning illustrations. Declared venerable by the Catholic Church, Dr. Lejeune is an example of faith, integrity, and courage.