Printing process is a term used to describe the various methods used to create printed materials. OFFSET printing, which uses plates to transfer an image onto paper, is a common method of printing. Halftone printing uses dots of varying sizes to create an image. Lithography is a form of printing that uses a chemical process to transfer an image onto a surface. Roto printing is a form of lithography that uses a rotary press to transfer an image. Gravure printing is a form of intaglio printing that uses an etched cylinder to transfer an image. STENCIL printing is a form of printing that uses a STENCIL to create an image. Finally, silkscreen printing is a form of printing that uses a mesh screen to transfer an image.