A lithographic poster is a type of printed artwork made using the lithography printing process, wher ean image is drawn with gresy ink or crayon on a flat stone or metal plate. The process relies on the principle that oil repels water, allowing ink to stick only to the drawn areas and transfer the image onto paper.
Each color in the design is printed seperately using its own plate, layered to build the final image. This method produces posters with rich colors, soft shading, and hand drawn textures.
Lithographic posters became especially popular in France in the late 19th and early 20th centuries for advertising art exhibitions, theatre, cabarets, and products, and many are now consifdered collectible artworks.