Typography is one of the most underestimated skills in UI design.

Many beginners spend hours selecting colors and creating beautiful layouts but overlook the one thing users spend the most time reading—text.

Good typography isn’t about making words look attractive.

It’s about making information easier to understand.

Here are six typography principles every designer should know.

1. Font Pairing

Use contrasting fonts with purpose.

Display fonts create personality.

Body fonts prioritize readability.

The goal is balance, not variety.

2. Alignment

Alignment creates structure.

Left alignment works best for most interfaces because it creates a predictable reading pattern.

Center alignment works for limited content.

Use right or justified alignment only when there’s a clear reason.

3. Line Height

Dense paragraphs create cognitive fatigue.

Adding enough vertical spacing allows the eye to move naturally from one line to the next.

A good rule of thumb is 120–150% line height.

4. Line Length

Long paragraphs make readers lose their place.

Very short lines interrupt reading rhythm.

Aim for approximately 40–60 characters per line for optimal readability.

5. Kerning

Kerning adjusts the spacing between individual letter pairs.

While subtle, good kerning makes text feel balanced and polished.

Poor kerning creates distracting visual gaps.

6. Hierarchy

Typography should answer one simple question:

“What should users read first?”

Use size, weight, spacing, and contrast to establish a clear visual hierarchy.

Typography isn’t just a visual design skill.

It’s a communication tool.

When users don’t notice your typography, you’ve probably done it right.

At UX Crumbs, we believe mastering fundamentals like typography is what transforms good designers into exceptional product thinkers.

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