Different paper textures give different effects to the sketches. The different textures of papers are graded as smooth, medium, rough, and glossy. To produce more contrast between the light and dark, you should use rough paper, as it holds more charcoal or graphite than smooth paper. Soft pencils should be used on smooth paper to give a dark tone to your sketch. Rough paper will give a grainy finish to the drawings. New pastels pencils help give more tone and control to the sketches.