APLN Moderator

Hi ElodieA,

Thanks for your question!

The aria-labelledby attribute points to a label—usually a heading—in a section that is considered an important part of the EPUB, which users can quickly navigate to. It is actually helpful to have a unique aria-labelledby for each chapter since each content chapter has the same role (doc-chapter).

It is up to your discretion to identify key components of the EPUB and apply aria-labelledby to those sections. Key components may include text chapters, prologue, part, glossary, appendix, etc. Aria-labelledby can also be used for titled asides or other important secondary sections (that are marked by headings) that may appear multiple times in a publication.

TL;DR, yes, the use of aria-labelledby in your example is correct. However, I would change the epub:type in your example to epub:type=”chapter”, as “bodymatter” is a separate semantic value and does not have an associated ARIA role.

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