<P> In Ancient Greece, all art and craft was referred to by the same word, techne . Thus, there was no distinction between the arts . Ancient Greek art brought the veneration of the animal form and the development of equivalent skills to show musculature, poise, beauty, and anatomically correct proportions . Ancient Roman art depicted gods as idealized humans, shown with characteristic distinguishing features (e.g. Zeus' thunderbolt). In Byzantine and Gothic art of the Middle Ages, the dominance of the church insisted on the expression of biblical and not material truths . Eastern art has generally worked in a style akin to Western medieval art, namely a concentration on surface patterning and local colour (meaning the plain colour of an object, such as basic red for a red robe, rather than the modulations of that colour brought about by light, shade and reflection). A characteristic of this style is that the local colour is often defined by an outline (a contemporary equivalent is the cartoon). This is evident in, for example, the art of India, Tibet and Japan . Religious Islamic art forbids iconography, and expresses religious ideas through geometry instead . </P> <P> In the Middle Ages, the Artes Liberales (liberal arts) were taught in universities as part of the Trivium, an introductory curriculum involving grammar, rhetoric, and logic, and of the Quadrivium, a curriculum involving the "mathematical arts" of arithmetic, geometry, music, and astronomy . The Artes Mechanicae (consisting of vestiaria--tailoring and weaving; agricultura--agriculture; architectura--architecture and masonry; militia and venatoria--warfare, hunting, military education, and the martial arts; mercatura--trade; coquinaria--cooking; and metallaria--blacksmithing and metallurgy) were practised and developed in guild environments . The modern distinction between "artistic" and "non-artistic" skills did not develop until the Renaissance . In modern academia, the arts are usually grouped with or as a subset of the humanities . Some subjects in the humanities are history, linguistics, literature, theology, philosophy, and logic . </P> <P> The arts have also been classified as seven: Literature, painting, sculpture, and music comprise the main four arts, of which the other three are derivative; drama is literature with acting, dance is music expressed through motion, and song is music with literature and voice . </P> <P> Drawing is a means of making an image, using any of a wide variety of tools and techniques . It generally involves making marks on a surface by applying pressure from a tool, or moving a tool across a surface . Common tools are graphite pencils, pen and ink, inked brushes, wax colour pencils, crayons, charcoals, pastels, and markers . Digital tools which can simulate the effects of these are also used . The main techniques used in drawing are line drawing, hatching, crosshatching, random hatching, scribbling, stippling, and blending . An artist who excels in drawing is referred to as a drafter, draftswoman, or draughtsman . Drawing can be used to create art used in cultural industries such as illustrations, comics and animation . </P>

How many different forms of art are there