Florence Nightingale revolutionized the world of medicine by emphasizing cleanliness, food that was hot and nutritious, and organization in hospitals. What began as an attempt to make army hospitals safer and more effective became a lifelong mission, and remains relevant today. This new picture book biography of Florence Nightingale, from celebrated author and artist Demi, beautifully portrays the story of Florence's life and explores the long-lasting effects of her career.