Crosshatching
Shading made from layers of parallel lines crossing at different angles, like an engraving or pen-and-ink drawing.
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What it is
Crosshatching builds tone with sets of parallel lines laid across one another. Light areas may have one widely spaced set, while shadows gain tighter spacing, thicker strokes, or extra layers at different angles.
It suits images that should feel drawn, engraved, or printed rather than smoothly shaded, especially pen-and-ink illustration, editorial portraits, maps, and currency-like detail with fine tonal control.
Gotcha: piling on uniform line grids can flatten the subject and create moire when the image is resized. Let strokes follow the form, vary their density with tone, and test the pattern at its final display or print size.
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Render this image with crosshatching: trace the forms with parallel ink strokes, use one widely spaced line direction in midtones, and add tighter layers at 45 and 135 degrees in darker areas. Leave highlights mostly paper-white, vary stroke direction with the surface, and keep the marks crisp like an etched illustration.