Cross-hatching is a drawing technique used to create shading and texture. It involves drawing a series of parallel lines that intersect at various angles. By varying the density and direction of these lines, artists can produce different levels of darkness and depth in their work. This method is commonly used in various art forms, including pen and ink illustrations and pencil sketches. Cross-hatching allows artists to convey light and shadow effectively, enhancing the three-dimensional appearance of their subjects. It is a fundamental skill taught in art classes and is often seen in the works of famous artists like Albrecht Dürer.