The monochrome colours black, white, sanguine and sepia are found in the nude classes of almost all art academies. They give drawings vitality, liveliness and expressiveness. Lightened with white and darkened with black, this is an old tradition in Renaissance figurative drawing. Pitt Monochrome chalks revive this old tradition of figurative drawing, which is why the chalks are harder for drawing than regular pastels. As a result, when the paint is spread, the lines do not dissolve completely . The red and sepia chalk pencils are complemented by grease-free and grease-containing drawing pencils for details and lines.