Hatching for Thickness: By hatching (drawing closely spaced parallel strains) in particular places, you are able to develop the illusion of a thicker line and increase texture to the drawing. Overlapping Strokes: Layering or overlapping traces can produce a feeling of thickness. This system is particularly practical with pens https://inkpendrawingtechniques32210.nizarblog.com/36317724/ink-pen-drawing-techniques-secrets