Nonfiction eBook Accessibility Improvements for Kindle

6 October, 2025 1 min read

Challenge:

A nonfiction guide faced EPUB ingestion errors and poor mobile previews. Charts lacked alt text, and callouts had low contrast, leading to reader frustration and high support tickets.

Solution:

Estorytellers applied Kindle book publishing guidelines and Amazon book publishing requirements to improve accessibility:

  • Added descriptive alt text for all charts and images.

  • Increased contrast for callouts and headings.

  • Validated EPUB compliance for fixed-layout and reflowable formats.

  • Tested mobile previews to ensure readability without zooming.

Results:

  • EPUB ingestion errors dropped to zero.

  • Mobile previews became fully readable.

  • Support tickets decreased from 12% of buyers to 2%.

  • Compliance with accessibility standards improved reader experience and KDP approval reliability.

Conclusion:

Ensuring accessibility through alt text, contrast, and EPUB validation reduces errors, improves usability, and meets Amazon book publishing requirements.

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