Guérin specialised in the stipple technique. This method uses thousands of tiny dots to build up shadows and form. It creates a soft effect that is different from the sharp lines of traditional etching. In works like Love Disarmed and Allegorical Subject, he applied this technique to mythological figures. His approach favoured the clarity of Neoclassicism over the busy decorations of the earlier Rococo period. He often looked to the works of Correggio for inspiration in his compositions.

These prints appeal to modern collectors who appreciate technical skill and classical proportions. The monochromatic nature of his engravings makes them easy to place in various interior design schemes. They offer a window into the late Enlightenment period without the visual noise of more flamboyant styles. Guérin’s work brings a sense of order and historical depth to a room. His prints are valued for their quiet elegance and mastery of light.