printmaking-etching, monotypes, linocuts

In traditional etching, a metal plate, usually made from copper, zinc or steel, is coated with a waxy acid-resistant substance called 'ground' upon which the artist draws his design with a metal needle, exposing the bare metal as he does so. The plate is then immersed in acid. The acid eats into the metal, where it is exposed by the design, resulting in lines in the plate. The plate is then wiped clean of all the ground, and the plate is inked using the same method as for engraving.
Monotyping is a type of printmaking made by drawing or painting on a smooth, non-absorbent surface. The image is then transferred onto a sheet of paper by pressing the two together, usually using a printing-press. Monotyping produces a unique print, or monotype; most of the ink is removed during the initial pressing. Although subsequent reprintings are sometimes possible, they differ greatly from the first print and are generally considered inferior.
Linocut is a printmaking technique, a variant of woodcut in which a sheet of linoleum is used for the relief surface. A design is cut into the linoleum surface with a sharp knife, V-shaped chisel or gouge, with the raised (uncarved) areas representing a reversal (mirror image) of the parts to show printed. The linoleum sheet is inked with a roller (called a brayer), and then impressed onto paper or fabric. The actual printing can be done by hand or with a press.