"Most people have heard of Thomas Edison, Steve Jobs, and Mark Zuckerberg, but how about Daniel Hale Williams, Mae Jemison, and Mary Anderson? The world owes a lot to the unsung heroes of innovation, people who used their ideas to make the world a better place through advances in health, technology, food science, and discovery! In Innovators: The Stories Behind the People Who Shaped the World, readers ages 9 to 12 learn about many inventions, products,...