Literally the definition of lithography [1]: The process of printing a lithograph on a hard, flat surface; originally the printing surface was a fl

Literally the definition of lithography [1]: The process of printing a lithograph on a hard, flat surface; originally the printing surface was a flat piece of stone that was etched with acid to form a surface that would selectively transfer ink to the paper; the stone has now been replaced, in general, with a metal plate. [1] https://en.wiktionary.org/wiki/lithography https://en.wiktionary.org/wiki/lithography