He developed the technique of cross-hatching to create volume and shadow. Before his innovations, prints relied on simple outlines. In works like Saint Bartholomew, he used dense systems of lines to define the folds of fabric. The Tiburtine Sibyl Showing the Vision of the Virgin to Emperor Augustus demonstrates his ability to arrange groups of people within a structured space. This method allowed for a greater sense of three-dimensional form.

These prints offer a window into the late Gothic period through technical precision. Collectors value the sharp clarity of his engravings. The monochrome aesthetic fits well in modern interiors that prioritise graphic lines. His prints provide a connection to the origins of European printmaking. They represent the start of the printmaking tradition in Europe.