Line is the most basic element of art, with Pablo Picasso and Henri Matisse exemplifying its use. Contour lines present the outlines of objects, with a plain contour using a clean, connected line without shading to emphasize the exterior shape.
Contour Lines Themost basic way to use line in drawing is through contour lines Contour lines: Contour means "outline", and presents exterior edges of objects. A plain contour has a clean, connected line, no shading and emphasizes an open "shell" of the subject.