Font Styles for Numerals

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Most modern fonts have numerals that are all the same height as capital letters:

Numbers-modern-style.png

However, some books that we see while proofing may use an older font style in which the height and vertical placement of the numerals vary:

Numbers-old-style.png

These are often called old-style figures, while the first example shows lining figures. Occasionally a book may even use both styles; for instance, an index might have page numbers in one font style and line numbers in the other.

An OCR text often has errors when this font style is part of the page image, particularly with the numbers zero and one, so check carefully during proofreading.

See Also