<aside> ℹ️ Typeface helps to create the style and look of your design. It creates an impression and emotion, revealing the purpose of your project. The proper choice of typeface determines readability and the user's perception of the interface in the first few seconds when they open your website or application.
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The choice of typeface can affect readability in the first place. Poor and inappropriate typeface selection can be crucial at the beginning of a design, and no other adjustments or methods will improve your work's result.

Sometimes a font can be legible, like monospace, but the text will remain challenging to read in different cases. Monospaced typefaces are better for short text and captions than for long text.

Monospaced long text is harder to read than the same text with sans-serif font.
The serif typeface has higher legibility; as a rule, texts typed with it are easier to recognize and perceive, especially if they are long articles and books. But often, in direct comparison, it is not easy to see the difference in readability between serif and sans fonts.

In long texts, the difference in readability between serif and sans is hard to see.
In marketing websites, dashboards, and other control interfaces, a sans font is more appropriate because it scans better and faster by the eye.

Readability is the most important thing in design. If your visitors and users can't comfortably read the text the whole design doesn't make sense.