C Van Gogh used a cross-hatching technique of filling certain areas with tiny dots to create value
Chiaroscuro is Italian for<em> light and shadow</em>
Painters use this technique when they need to <u>create the illusion of light</u> on objects and people
I've attached a pic for example :D
A) it’s ability to be erased and/or corrected
Peaty much blank some glass pane work but other than that not much