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by JuliannaKunstler.com

Units of measure


In typography the point is the smallest unit of measure.

It is used for measuring font size, leading, and other items on a printed page.

There is 72 points to the inch.


Twelve points make up a pica.

Six picas make an inch.

If your work involves complex, multi-page designs such as books, magazines, newspapers, or newsletters, working in picas and points can be a real timesaver.Use picas for measuring column width and depth, margins, and other larger distances.

Have you heard of the Rule of thirds in design?

Here's an example: divide an 8.5-inch by 11-inch piece of paper into thirds horizontally. Now, find 3.66 inches on the ruler. It's not the simplest concept, but just remember the rule that 11 inches is 66 picas, so each third is 22 picas. 


The pixel (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image.

The physical size of a pixel depends on how you've set the resolution for the display screen.