The firm became a centre for the lithography movement in France. They worked with artists like Eugène Delacroix and Odilon Redon to translate drawings into printed editions. Lemercier & Cie. were early masters of chromolithography. This process used different stones for each colour. Their prints avoid the flat look of common commercial posters. They used layered washes that look like watercolour. This technique gave their work a physical depth that other printers could not match.

Collectors today look for these prints because of their clarity. The works show the moment when industrial methods met fine art. Lemercier & Cie. used high-quality paper and stable inks that do not fade easily. These lithographs provide a connection to nineteenth-century Paris. Their balanced compositions and restrained colours work well in modern homes.