Some of them were elementary school dropouts. Others became medical doctors or college professors. Some were famous, while some toiled in obscurity. Some became rich. Others remained poor their whole lives. But the African-American scientists and inventors profiled in this book had one thing in common: a determination to succeed. And in pursuing their dreams, these creative thinkers made the world a better place. Lewis Latimer devised a manufacturing process that made electric lights affordable for ordinary people. Charles Drew did pioneering work in blood storage, helping save countless lives. Garrett Woods figured out how to send messages from moving trains. Learn about these and many other black scientists and inventors in this fascinating book.