Hatching is a shading technique used to create, that implies shade, tone or texture. The effects are made by drawing closely spaced parallel lines.
The quantity, thickness and spacing of the lines will affect the brightness of the overall image and can emphasise forms creating the illusion of volume, thus the distance between the lines will determine light and dark areas. The technique is mostly used in drawings or sketching with pencil or ink and sometimes with paints and is applied quite quickly. The lines can be either long or short.