What Exactly is Lithography, Anyway?
Lithography is a technique based on the principle that water and oil will not mix. The artist draws the original image with oil, fat, or wax onto the surface of a smooth metal plate. A chemical solution is then applied over the surface, producing water-receptive areas that will not print and greased image areas that will. The printing surface is kept wet so that an oil-based ink roller can be run across the surface - ink will only stick to the grease-receptive image area. Pap