In visual arts, a contour line is understood to be a line that draws the boundary of the outer edge of an object or form as a continuous line. Such lines are most basic in principle in the fine arts, serving as a construction line for the outer edges or demarcating volume and shape within an area of concern. In order to focus the viewer’s attention and provide a feeling of depth, which is absent in a sculptural work, artists accent the outer edge of subjects making contour lines.  Contour lines have been in existence from as far back as the primitive period when they were used in different forms such as cave paintings, drawing ornaments on pots and even in the drawing of geometrical shapes. Nevertheless, outline trace acquired its importance on the renaissance period as an example in the great works of Leonardo Da Vinci and Albrecht Dürer, who masterly drawings and paintings expressed realism with the help of precisely drawn contour lines.  Even in modern art form, contour lines are executed by artists like Pablo Picasso and Henri Matisse where bold impulsive strokes of lines are used to express movements and emotions as part of the works of art. Today, the limitless resources available have enabled artists to continue experimenting with contour lines, elevating their imaginations to unorthodox territory. In general, contour lines are of significant aid in the communication systems of the art since they provide artists with the means to depict contour, depth and texture in their works. As a contour line is drawn either boldly or subtly, it remains a scope in contouring, allowing the artist to represent an object of their imagination while abstracting the unwanted details of it.