science, physics, women, inspirational, changemaker, role model, biography. Born in China, Chien-Shiung Wu moved to the U.S. in 1936. Her dream was to become a physicist. But at the time, there were few women scientists. Discrimination was an issue too. Still, Wu did not give up. With hard work, she not only changed the field of physics, but also blazed a trail for women in science. Blue Delta Books Biographies are Hi-Lo Books about people who have changed our world in profound ways. This series features a diverse group of people. Some are more well-known than others, but all deserve to be highlighted for the positive impact they have had. Each Blue Delta Book features full-color images on every page and tells the person's story from childhood throughout their life. Sure to inspire readers, these impactful biographies are each 48 pages long and include a glossary of key vocabulary words.