The book covers all aspects of road and bridge construction in the Roman Empire, from commissioning, planning and design to contracting and execution. Technical details include surveying, materials, tools and implements. The Roman road network is shown with Latin place names; principles and types of construction are explained. The core of the work deals with bridge construction: design criteria, structural systems, foundations and abutments are dealt with in detail. Particular attractive are five dozens of case studies, presenting individual ridges, which were reviewed by the author on site. Countless illustrations, mostly in color, enliven the book.