Definition

The resource includes an index to the content.

Examples

Example 1 — EPUB 3
<meta property="schema:accessibilityFeature">
   index
</meta>
Example 2 — EPUB 2
<meta name="schema:accessibilityFeature"
      content="index"/>
Example 3 — Audiobooks
"accessibilityFeature": ["index"]

Explanation

The index value is used to indicate that a publication contains one or more indexes of the content (e.g., a topical index or index of names).

Indexes allow users who cannot see the text or have difficulty following it to find and return to subjects more easily.

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