Story highlights Mike Parker, who helped make Helvetica famous, died Sunday at age 84

In a documentary, Parker praises the "firm" quality of the font

He helped start the first company dedicated to producing digital fonts

Some of the logos in the gallery that accompanies this story did not represent the Helvetica typeface. The gallery has been edited to reflect that.

(CNN) Look at the letters in these words. Really look at them: the shape of the circle that makes the "o" and the roundness of the "c."

Look at how wide and tall they are. Look at the spaces between them.

How do the lowercase letters make you feel? HOW ABOUT THE CAPITALS?

A lot of consideration goes into designing a font, but somehow we're all able generally to accept the typefaces around us, ignoring their subtle design quirks as though they're as ordinary as air. We read their content but don't think too much about their form.

Mike Parker appeared in the 2007 documentary "Helvetica."

In this way, the Helvetica font has established itself. There's even a movie about it -- the 2007 documentary "Helvetica."

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