The document discusses various printing techniques including lithography, screen printing, linocut, etching, letterpress, gravure printing, screen process, photocopying, laser printing, and inkjet printing. Lithography involves using a large stone and oil or water-based ink. Screen printing forces ink or metal onto a surface through a mesh screen. Linocut originated in Germany using linoleum and ink or paint. Etching is done on copper, zinc or steel using an etching needle. Letterpress uses a machine to produce 3D prints. Gravure involves engraving an image into a machine that prints as it turns. Screen process also uses a mesh screen but to apply ink to create an image. Photoc