Small Multiples
(picture of examples)
- Naked eye can discriminate 0.1 mm: 254 lines per inch
- Shoot for approx. 10 numbers per sq. inch
- For non-data-ink, less is more.
- For data-ink, less is a bore.
Bertin, Jacques, Semiologie Graphique (Paris, 2nd ed., 1973), p. 214.
Reproduced in Tufte, The Visual Display of Quantitative Information