Coloradans have always been trailblazers. It is no wonder that so many enterprising, innovative, and revolutionary thinkers have originated from or spent much of their lives in the Centennial State. This book celebrates Colorado's most famous scientists, engineers, and technological pioneers from the Nobel prize winning chemist Thomas Cech and the barrier-breaking physician Justina Ford to the man who transformed the mining industry, John George Leyner. Engaging text and full color photos showcase these biographies and more and help students see how the contributions of these men and women have improved people's lives in Colorado and beyond.