How wide should letters be? (optical, rhythm theories)

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Joachim Lapiak's picture
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Joined: 28 Jul 2006 - 9:02am
How wide should letters be? (optical, rhythm theories)
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As I'm still working on my typeface, I'm having trouble figuring out how wide letters should be, and how the positive space affects the negative space. Obviously, our eyes determine what looks best, but is there theory behind it?

- Is there such a thing as optical rhythm? (ie: three l's "should" fit in one o.) Obviously, this doesn't work if u is the same width as n.
- Does the width of the glyph depend on the total surface area of the negative space? (ie: u should be more narrow than a) Does this apply to every character? Should this take metrics and kerning into consideration?
- Since changing the placement, width and height of the tail, arm, cross strokes, etc. affects how wide a character appears optically, should width be ignored in this case?

The reason I ask these exploratory questions is that I'm trying to determine how to maximize readability not based on how legible letterforms are, but how wide they are optically, and how they can achieve rhythm, if possible.

Thank you!

Tim Ahrens's picture
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Joined: 28 Sep 2004 - 9:15am
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You might find this essay interesting:

Rhythm in Type Design
by Alejandro Lo Celso
on http://www.typeculture.com/academic_resource/articles_essays/

Joachim Lapiak's picture
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Joined: 28 Jul 2006 - 9:02am
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Thanks for the great link! The article helped somewhat, but I think Basic Character Spacing in Type Design by Mark Jamra is what got it for me: "The spaces between the letters should have the same optical volume as the spaces within them." I've been looking too closely at spatial relationships within letters that I've overlooked the relationship between letters. It's a simple quote that made me go "duh!" but thank you for your help :)

Ricardo Cordoba's picture
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Joined: 6 Jun 2005 - 6:57pm
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Counterpunch is another useful text in this regard.