What can one learn from the following figure? 
Definitions:
Sans Serif Fonts
Typeface styles that do not have the small projecting features called "serifs" at the end of strokes.
Narrow Columns
Column format in text documents or websites that is reduced in width, often used to improve readability or aesthetics.
Hardcopy Documents
Physical copies of documents or materials, as opposed to digital versions, often printed on paper.
Complex Document
A document characterized by intricate or detailed content, structure, or format, often requiring specialized understanding to interpret.
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