What technique involves the use of non-overlapping parallel lines to suggest lightness or darkness?

The technique of using non-overlapping parallel lines to suggest lightness or darkness is known as hatching. In this method, artists create various tonal effects by placing lines closely together or further apart to manipulate the perceived intensity of light and shadow. When lines are drawn closely together, the area appears darker, while more distant lines allow for lighter sections to emerge. This technique is particularly effective for creating depth and dimension in drawings, as it enables the representation of light sources and form.

Hatching is distinct from crosshatching, which employs intersecting lines to achieve darker tones and a more complex texture. Stippling involves using dots instead of lines, and blending integrates smooth gradients, both of which differ from the linear nature of hatching. Understanding hatching and its unique properties is crucial for artists aiming to accurately depict contrasting light values in their work.