A tool used in the erasure of parts of drawings. Graphite pencil drawings are erased with any of several types of rubber. (It was after this use that the substance called rubber received its name.) Lighter parts of charcoal drawings can be erased with either a kneaded eraser (also called putty rubber) or a kneaded piece of fresh bread. Wax crayons and lithographic crayons cannot be erased unless they are on non-absorbent surfaces.
A printing technique that involves carving text in relief upon a wooden block. When inked, the impression is transferred to paper. The oldest known printed works were produced by this method in Japan and China during the 8th and 9th centuries. This method of wood-block printing appeared in Europe in the 14th century and eventually inspired Johannes Gutenberg to create type pieces out of metal.