Counter (typography)

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The counter of the letter "p" shown in red

In typography, a counter or aperture is the area of typeface anatomy that is entirely or partially enclosed by a letter form or a symbol (the counter-space/the hole of).[1][2] Letters containing closed counters include A, B, D, O, P, Q, R, a, b, d, e, g, o, p, and q. Letters containing open counters include c, f, h, i, s etc. The digits 0, 4, 6, 8, and 9 also possess a counter.

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  1. ^ Maxymuk, John (1997). Using desktop publishing to create newsletters, handouts, and Web pages (Google books (snippet view)). Neal-Schuman. p. 33. ISBN 978-1-55570-265-6. Retrieved July 19, 2009. "Counter is the white space center of enclosed letters like Bb, Dd, Pp." 
  2. ^ Narang, Sumita (2006). Designing Websites: According to the Ancient Science of Directions (Google books (limited prview)). Smita Jain Narang. p. 74. ISBN 978-81-207-3071-7. Retrieved July 19, 2009. "Open space in a letter is called the counter or the aperture."