Charcoal can be used as a writing tool in art and drawing. It is often used to create drawings with rich, intense tones, applied directly to paper or other surfaces with a piece of charcoal or a charcoal stick. The charcoal drawing technique allows the artist to achieve varied shades and create dramatic effects of brightness and shadows. Additionally, charcoal can be used for preliminary sketches or to emphasize contours in the final drawing. The use of charcoal in art requires some specific skills and techniques to achieve the desired results.