Readers will marvel at the incredible engineering accomplishments in each of these engaging books. Through up-close examinations of three major projects, readers learn about core science and engineering concepts and principles at work in the discipline. The books also explore the tools used by engineers in their work, as well as issues that regularly come into play in the world of engineering, such as availability of resources and environmental impacts. Each book concludes with a forward look at the future of the discipline. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.