Leonardo da Vinci perfected this style
Utilize the techniques of hatching, cross-hatching, and stippling to
achieve the best contrasts.
The Virgin and Saint Anne with the Christ Child and John the Baptist, Leonardo da Vinci. Charcoal, black and white chalk on brown paper.
You can see the range of depths from the lightest points to the darkest. These tools give you dimension, depths and heights.
Jessica, Charles White
Hatching to Cross Hatching:
Build up your values:
Three Values Five Values Full Scale
Over the weekend, pick up a basic art pencil set--including both graphite and charcoal pencils, a rubber eraser, a highlight pencil (white chalk is also acceptable), and a stump.