This document provides information on hatching techniques used in drawing. It defines hatching as overlapping parallel lines that create texture and tone. Cross-hatching is described as layering hatching lines in different directions to darken tones. Various hatching techniques are shown including basic, diagonal, curved, and "curly" hatching. The document explains how hatching can be used to depict volume, texture, folds in cloth, and more. It encourages practicing hatching by creating a book cover using these techniques.