Alugraphy / Algraphy / Anodized aluminium plate process

The term alugraphy or algraphy is a composite noun made up of the words "aluminium" and "graphein" [Greek: "to write"]. A planographic printing process used for book illustration, alugraphy marked the beginning of a development that has led to present-day offset printing. Alugraphy and the anodized aluminium plate process use plates made of aluminium (unlike lithography, which uses a stone plate). Alugraphy is rarely used nowadays in printing.