LIGHT AND SHADE
How and Where to Place light and shade in a drawing is an oft recurring source of perplexity to the beginner.
It is the more perplexing because often all light and shade


in a one-color picture are merely substitutes for color as seen in nature. Light and shade values in a black and white drawing are merely relative in their attempt to imitate the
pigments by which nature lets us discern form. In drawing, forms are represented by outlines, or by light and shade areas, or by a combination of both.
If light were to pervade a room evenly the light not coming from any particular direction, as from the sun, or some fixed artificial light or lights there would be no shadows.

We could then perceive such forms only as they were made visible by their different colors.