Berthault focused on architectural precision and topographical accuracy. He collaborated with draughtsmen to translate large-scale events into engravings. His views of Italy, such as the Village of Squinzano and the Ancient Church of Salerno, show a fascination with structural form. He used clean lines to define stone and space. This method allowed him to record the scale of ancient temples and the layout of rural villages. His compositions often place the viewer at a distance to observe the environment.

These engravings provide a window into eighteenth-century Europe. Collectors value the technical skill required to produce clear, linear images. The architectural subjects suit contemporary interiors that favour order and historical context. Works like the Triumphal Entry of the Monuments of Arts and Sciences offer a look at the cultural shifts of the era. These engravings are historical documents. They bring a sense of classical structure to a wall.