Accessible EPUB Documents

Electronic documents such as EPUB files (electronic publication files) are treated like a full electronic and information resource (EIR) product. They should conform with all WCAG 2.0 requirements relevant to them.

EPUB files follow the same guidelines as a webpage:

  • Provide alternative text for all non-decorative images
  • Avoid text-heavy images where possible
  • Provide alternatives for complex mathematical equations or other STEAM (Science, Technology, Engineering, Art, Mathematics) program elements
  • Use proper semantics (e.g. text, paragraphs, headings, lists, tables)
  • Ensure proper reading order of content
  • Avoid using styles that override styles personalized by the reader

What is an EPUB file?

EPUB files are an internationally recognized eBook format using the file extension ".epub". They are supported by multiple eReaders (e.g. Kindle, Nook, Kobo), including built-in eReaders on smart phones and tablets. EPUB files are considered more internationally accessible, particularly in low resource or basic skills settings.

EPUB files are widely used by textbook publishers. They can also be used by faculty, authors, and government agencies wanting to provide content in a flexible digital format.