Blackwork and woodcut: where this drawing style comes from

The dense black line drawing used across most dark illustration is not a style choice that arrived from nowhere. It is the grammar of relief and intaglio printing, invented because for four hundred years a printed picture could only be made of solid black marks. There was no grey available. Shadow had to be built out of line density, and every convention people now imitate with a digital brush, the hatching, the stippling, the contour lines that swell and taper, was originally a workaround for a physical limit.

Blackwork means two different things

Historically, blackwork is an embroidery technique: black silk worked on white linen, popular in sixteenth century England and often called Spanish work at the time. The fills are geometric and counted, and it looks like printed pattern because both were drawing on the same ornament sources.

The modern use of the word comes from tattooing, where blackwork means solid black and heavy line with no colour, drawing on several unrelated traditions at once. When people say a drawing has a blackwork look, this is usually what they mean.

Neither is the real ancestor of the illustration style. For that you have to look at how pictures got printed, because the marks came from the tools.

Woodcut: the line is what is left behind

A woodcut is relief printing. The block is cut on the plank, along the grain, in a softish wood like pear, and the cutter removes everything that is not going to print. The line is the wood that survives, which is the opposite of drawing and explains almost everything about how woodcuts look.

Because the line must stand up to inking and pressure, it has to be thick enough to survive. Long parallel cuts are reasonably easy, cross hatching is difficult and slow, and very fine detail snaps off. That produces the familiar woodcut look: strong contour, bold shadow, angular corners where a knife changed direction.

Woodcut dominated book illustration from the 1460s for a purely practical reason. It is relief, like type, so a block and a page of type can be locked into the same press and printed together. Intaglio could not do that, which is why early printed books have woodcuts and not engravings.

Wood engraving made the line fine

Wood engraving is the same principle with different material. The block is cut from the end grain of boxwood, which is dense and has no direction, and it is worked with a burin rather than a knife. That allows extremely fine lines, and it allows white marks on black as easily as black on white.

It arrives at the end of the eighteenth century and it is the engine of Victorian illustration. Every picture in an illustrated weekly was drawn on the block and then cut, usually not by the artist but by a team of engravers, sometimes working on a block bolted together in sections so several hands could cut at once and the thing could run the next day.

This matters when you look at nineteenth century illustration. The hand you are admiring is often the engraver's, and the division of labour is the reason the tonal conventions are so standardised.

Engraving and etching invented hatching as a system

Intaglio works the other way round. Lines are cut into copper with a burin, or bitten into it with acid through a wax ground, and the ink sits in the grooves. Damp paper is forced into the plate under heavy pressure, so an etched line has a slightly raised ink deposit you can feel with a fingertip.

A line either prints or it does not, so tone had to be constructed. Engravers developed a full system for it: parallel hatching for flat shade, cross hatching for depth, stipple for soft gradation, and lines that swell and taper to describe a rounded surface. Read any Renaissance engraving closely and you are reading a tonal code.

Mezzotint and aquatint were later attempts to escape the code by roughening the plate to hold ink in broad areas. They are the exception that proves how restrictive the line was.

There was no grey until the 1880s

The single most important technical fact here is that photographic halftone, the screen that breaks a continuous tone photograph into dots of varying size, only became practical for commercial printing in the 1880s. Before that, every printed tone in every book, poster, broadside and newspaper was made of solid black marks whose density did the work.

That constraint shaped taste for centuries and the taste outlived it. Strong black reproduces at any size, on cheap paper, with a worn plate and an indifferent pressman. Grey needs a screen, decent paper and care. Printing economics therefore rewarded high contrast, and illustrators learned to draw that way.

You can still use it as a test. A drawing in this tradition should survive being printed in one colour at a few centimetres across, because that is the condition it evolved under. If it falls apart at that size, it is a painting pretending to be a print.

The twentieth century roughened it back up on purpose

Once halftone made fine printed tone easy, the woodcut became a choice rather than a necessity, and artists immediately started cutting it badly on purpose. The German Expressionists from about 1905 left splinters and tool marks in, because the crudeness was now expressive rather than a limitation.

Scraperboard, also sold as scratchboard, did the reverse: a white clay coated board inked solid black and scratched into with a blade, which imitates wood engraving without a press. Most of the white-on-black line illustration in mid century advertising and book jackets is scraperboard.

Both are now part of the same visual pool. A modern dark illustration usually mixes relief contour, intaglio hatching and scraperboard reversal, three techniques that could not physically be combined in one block.

What this means for a drawing on paper now

Drawing in this grammar deliberately means accepting its rules. Solid areas are solid. Mid tones are made from marks, not from a wash. Edges are decided rather than blended. That is why five moths on the inside of a window can be read instantly at any size, and why the same approach makes a crowded image like a ghost in a teapot on a windowsill at night stay legible instead of turning to mud.

It also prints well, which is the circular part of the argument. A line drawing with no delicate mid tones is the easiest thing in the world to reproduce faithfully on an uncoated paper with a slight tooth, which is what our prints are on: archival matte, 192 gsm.

One practical note, since this is a shop. The photographs on the print pages show the drawing in a frame, and the frame is not included. A print like Curled arrives rolled in a tube with a thin white border, which is there so it can go straight into a mount of your choosing.

Questions people actually ask

What is the difference between a woodcut and a wood engraving?

A woodcut is cut with a knife on the plank, along the grain, giving bold thick lines. A wood engraving is cut with a burin on the end grain of a hard wood like box, which allows very fine lines and white marks on black.

Why do old illustrations use so much cross hatching?

Because a printed line either prints or it does not, and there was no way to print grey until photographic halftone arrived in the 1880s. Tone had to be built out of the density of solid black marks, so hatching, cross hatching and stipple became a tonal code.

What does blackwork mean in illustration?

Usually a drawing made only in black, with heavy line and solid fills, borrowing the look of woodcut and engraving. The older meaning of blackwork is an embroidery technique using black silk on white linen, common in sixteenth century England.

What is scraperboard?

A board coated in white clay and inked solid black, which the artist scratches into with a blade to make white lines. It imitates wood engraving without a press, and it is behind most white-on-black line illustration from the mid twentieth century.