AI Tutor
How can a flat sheet of paper make a round apple look like you could reach out and grab it?
Artists do not use magic — they use three core pencil techniques: contour, shading, and hatching.
Let's look at how the very first mark on your paper sets up the whole drawing.

Contour: Capturing the Edges

A contour line is a line that defines the outer edges and the important surface details of an object.
Instead of drawing quick, hairy scribbles, a confident contour line follows the true shape smoothly, like an ant crawling along the rim of a cup.
Contour lines give your subject shape, but how do you make that flat shape look solid and three-dimensional?

Value and Smooth Shading

In art, value describes how light or dark something is, ranging from pure white to deep black.
When light hits a 3D object, it creates distinct zones of brightness and shadow based on where the light source is positioned.
Smooth blending is great, but what if you want to create shadows using only crisp lines and texture?