Sketching techniques are methods used to create quick, informal drawings that capture the essence of a subject. Common techniques include contour drawing, where artists outline the subject without lifting their pencil, and gesture drawing, which focuses on capturing movement and form in a short time. These techniques help improve observation skills and speed. Another popular technique is hatching, which involves drawing closely spaced parallel lines to create shading and texture. Cross-hatching builds on this by adding intersecting lines for deeper shadows. These methods allow artists to convey depth and dimension in their sketches, enhancing the overall visual impact.