I'm reading an article on typography and it is suggested at one point that a certain heading should have "Small Caps, spaced generously at 75".

What does that number, 75, represent?

1 Answer 1


I would assume tracking (or letter spacing).

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In Adobe software that is measured as 1/1000 of an em (so "75" is 0.075 em). In QuarkXPress it is measured as 1/200 of an em (so "75" is 0.375 em) and there are probably other variations (you can set CSS letter-spacing in whatever unit you like, for example)... So without knowing the context in which it is being talked about that number is a bit ambiguous.

  • It seems you are right and it would be not be QarkXPress software as .375em would be far too large.
    – Rob
    Apr 8, 2017 at 15:26
  • Is this the article you're talking about: retinart.net/typography/typographicscale (that was the only result searching for the line you quoted) ? ...if so they mention InDesign so that would be it
    – Cai
    Apr 8, 2017 at 15:30

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