design
100hyakunen, bookshop rooms drawn as a mosaic of marks
Post by 古本屋 百年 (@100hyakunen), 2026-10-25
What it is, and who made it
Two pen drawings of a person browsing in a room of bookshelves. The shelves fill the frame; each run of books is drawn as one repeated mark. Pale-green pencil perspective guides sit under the ink.
Parts, layer by layer
- Ground: paper; green coloured-pencil guides (O). Palette leads #aaa496, #c1beb0, #d1cec4 (M).
- Mark vocabulary (13 types, O): plain verticals; stacked short dashes; dot columns; line-and-dot; loops and curls; scallop rows; cross-hatched blocks; solid black blocks with white gaps; horizontal dash stacks; small open squares; forked marks; zigzag diagonal hatching; hooks.
- Rule: one mark per shelf run, so the type of book is coded by mark (O).
- Measures: spectral slope β 1.38 and 1.65 (rough, mark-dense, M); edge softness 1.6 to 1.9 (hard pen, M); texture wavelength 0.004 to 0.006 of width (the spine pitch, M).
- Figure: one visitor per room, in the same pen (O).
The framework behind it
A mosaic whose tiles are marks, not colours: each tile carries a texture that stands for a kind of thing. It is a legend made of drawing, the same idea as a map's hatch patterns.
The same idea in distant fields
- Cartography and geology maps: hatch and dot patterns encode rock and land types.
- Textiles: weave structures named by their marks.
- Musical notation: repeated marks as rhythm.
- Halftone: dots standing for tone, here standing for kind.
Dual edge
Marks as categories invite reading meaning where none is fixed; a legend must travel with them. The drawings are someone's work; we take the mark idea, not the drawings.
Measured
Image 1
- #aba495 23%
- #c3beaf 21%
- #d3cec3 19%
- #90887a 19%
- #4a443e 10%
- #e3ddd4 9%
- Mean saturation
- 0.116
- Contrast
- 0.769
- Edge density
- 0.228
- Dominant wavelength
- 0.0059
- Edge softness
- 1.91
Image 2
- #aba292 28%
- #bcb2a5 20%
- #d2ccbc 15%
- #e3ddd3 14%
- #8e8477 12%
- #48403b 11%
- Mean saturation
- 0.132
- Contrast
- 0.776
- Edge density
- 0.236
- Dominant wavelength
- 0.0058
- Edge softness
- 1.61
Image 3
- #aaa496 23%
- #c1beb0 20%
- #d1cec4 19%
- #8e887b 18%
- #46413e 10%
- #e1ded5 9%
- Mean saturation
- 0.099
- Contrast
- 0.78
- Edge density
- 0.229
- Dominant wavelength
- 0.004
- Edge softness
- 1.92
Image 4
- #aba395 30%
- #bdb5a8 18%
- #d2cdc0 15%
- #e3dfd5 13%
- #8d867a 13%
- #453e3b 11%
- Mean saturation
- 0.113
- Contrast
- 0.79
- Edge density
- 0.239
- Dominant wavelength
- 0.0058
- Edge softness
- 1.63
Concepts
- block cube
- checking as craft
- city architecture
- code
- deco motif
- dispersion
- edge softness
- engraving carving
- field
- glyph cell
- grain texture
- grid
- halftone dither
- horizon
- identity name
- ink
- layering
- line hatching
- loop cycle
- mark density
- metal plate
- mosaic
- paper
- point particle
- projection depth
- repetition rhythm visual
- resonance pitch
- rule andamento follows form
- rule burin tone by line
- saturation hue
- sound
- stone sand
- tempo rhythm
- tessellation
- thread textile
- water
- wave form
- weaving stitching