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Web Accessibility Academy · Lesson

Complex Images: Charts, Maps, and Long Descriptions

Handle images that need more than a short phrase.

When Alt Is Not Enough

Some images carry too much information for a short phrase. Charts, maps, and diagrams need a longer description plan.

Start With a Short Alt

Even a complex image still gets a brief alt that names it, like a bar chart of monthly sales for 2024.

<img src="chart.png" alt="Bar chart of monthly sales for 2024">

All lessons in this course

  1. Informative vs Decorative: The First Decision
  2. Writing Alt That Conveys Purpose, Not Pixels
  3. Empty alt and the Hidden Decorative Image
  4. Complex Images: Charts, Maps, and Long Descriptions
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