Bridges have a unique fascination, but not all in the same way or to the same extent. Why are some bridges considered masterpieces of engineering while others are not? What constitutes a successful bridge design? Richard J. Dietrich, an architect and renowned bridge builder, addresses these questions in this book. Using historical material, he gradually approaches the essence of bridge engineering. Significant builders from the past and their works are presented and analyzed through contemporary illustrations, providing not only an impressive overview of the historical development of bridge engineering but also deriving guidelines and principles for the design of modern bridges. Dietrich then showcases completed projects and successful competitions.