Drawing is a form of visual art in which a person uses various drawing instruments to mark paper or another two-dimensional medium.
Sketches can be made in any drawing medium. The term is most often applied to graphic work executed in a dry medium such as silverpoint, graphite, pencil,charcoal or pastel. But it may also apply to drawings executed in pen and ink, ballpoint pen, water colour and oil paint. The latter two are generally referred to as “water colour sketches” and “oil sketches”. A sculptor might model three-dimensional sketches in clay, plasticine or wax.
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