Have you ever asked yourself, why they put a white pencil in every box? Or how you could intensify your shadows, when you don't have any darker color?
Here are some answers...
Begin a human-mouth drawing by outlining the seam of the mouth in a dark Conte colored crayon. Find out how to draw human mouths using Conte crayons with tips from this free video about learning how to draw.
To begin a Siamese cat drawing, start with the darkest-colored Conte crayon. Draw a Siamese cat with Conte crayons with tips from a professional illustrator in this free video about learning to draw.