Line weight means how thick or dark a stroke looks on the page. Objects near the viewer can carry
bold, heavy lines because they dominate the scene. Faraway edges fade into
thin, light lines that almost disappear. You control weight with pencil pressure and how many times you trace the same edge. Same subject drawn with one uniform line width looks flat, like a sticker. Varying weight tells the eye what is in front and what sits deep in the background.
⚡ DID YOU KNOW?
Comic artists often save the darkest line for the outline closest to the camera. Background buildings get a single hairline stroke so the hero pops forward.