Use directional lines to follow the form of the object. For example, use curved strokes when shading a sphere to reinforce its roundness.

Instead of seeing "a nose," see the "shape of the shadow" it casts. Outline these specific shadow areas lightly. 3. The Development: Building Tone

Now, move to softer pencils () to create depth.

Use a faint line to mark where the brightest light hits. Do not shade inside these lines.

In figures or organic shapes, draw one fluid line to capture the movement before adding detail. 2. The Bridge: Mapping the Values

This is the secret to "combining" the two. Where the light is bright, let the sketch line disappear ( lost edge ). Where the shadow is deep, use a sharp, dark edge ( found edge ). 4. The Finish: Refinement