What is kerning and what is the point of it?

From what I see here, it seems kerning is just rearranging the space between letters. However, the comments here lead me to believe there’s more to the story. Is kerning really that simple? Is the only purpose of it to look nicer or is there some practical reasoning for it?

Answer

I think the Wikipedia kerning article essentially covers it, but the bulk of the article is about adding kerning information to a font during its design, or applications automatically using this built-in information to improve composition of a font’s characters — rather than the a fine-tuning a designer might do on a particularly problematic pair of characters in a headline.

As an example, say the revolutionary new product, the

iVone

was launched; that combination of italic/oblique and roman characters would probably not have been foreseen by the font designer, and so would require special treatment to avoid the dot of the i from colliding with the V.

Letter-letter, or letter-punctuation combinations that are only used in some languages are other situations that might require custom kerning by a designer.

Also to note, fonts contain widely varying amounts of kerning information – this is one of the key differentiators between amateur and professionally produced fonts, or even between different versions of the same font.

Attribution
Source : Link , Question Author : John , Answer Author : e100

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