Bestselling and award-winning author-illustrator Marissa Moss tells the gripping story of America's first female cryptanalyst, Elizebeth Smith Friedman, who busted Nazi spy rings. Praised for her accessible blend of narrative nonfiction with graphic novel-style chapter openers in The Woman Who Split the Atom: The Life of Lise Meitner, Marissa Moss's Spying on Spies: How Elizebeth Smith Friedman Broke the Nazis' Secret Codes is another fascinating story of a groundbreaking woman in STEM. One of the founders of US cryptology who would eventually become one of the world's greatest code breakers, Elizebeth Smith Friedman (1892–1980) was a brilliant mind behind many important battles throughout the 20th century, saving many lives through her intelligence and heroism. Whip-smart and determined, Elizebeth displayed a remarkable aptitude for language and recognizing patterns from a young age.