Drawing is a form of visual art in which a person uses various drawing instruments to mark paper or another two-dimensional medium. Instruments include graphite pencils , pen and ink , various kinds of paints , inked brushes , wax colored pencils , crayons , charcoal , chalk , pastels , various kinds of erasers , markers , styluses , and various metals (such as silverpoint ). "Digital drawing" is the act of using a computer to draw. Common methods of digital drawing include a stylus or finger on a touchscreen device, stylus -to- touchpad , finger-to- touchpad , or in some cases, a mouse . There are many digital art programs and devices.