Hatching & Cross Hatching
Drawing's bread and butter

Hatching is an artistic technique where parallel lines of varying densities are applied to an image to create dark and light values. Cross hatching is the same, but with sets of lines applied at an angle to each other. Hatching and cross hatching are popular techniques in drawing and by extension, are near universal in etching and engraving, where it is often paired with stippling to create an even deeper sense of volume, as in Albrecht Dürer’s Melencolia I.