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Web Accessibility Academy · Lesson

Understandable: Is It Readable and Predictable?

Clear language, consistent behavior, helpful errors.

What Understandable Means

Understandable is the third WCAG principle: people must be able to read your content and predict how the interface behaves.

Readable Language

Plain, clear wording helps people with cognitive differences, non-native speakers, and tired readers. Simple beats clever for readability. 📖

All lessons in this course

  1. Perceivable: Can Everyone Sense the Content?
  2. Operable: Can Everyone Use the Controls?
  3. Understandable: Is It Readable and Predictable?
  4. Robust: Will It Work With Their Tech?
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