This document lists standards for Optimized EPUB Publications, which are publications that have been optimized for a specific reading modality.

This document is subject to change at any time. The standards defined herein may be deprecated or removed.

Any use of terms marked [draft] should be considered experimental.

Deprecated standards are identified by the label [deprecated]. These standards are no longer recommended for use.


Inclusion of standards in this registry does not constitute endorsement of them by the W3C or its membership.

DAISY Guidelines for Navigable Audio-Only EPUB 3 Publications

Provides guidelines for creating audio-only EPUB Publications using Media Overlays.

Identified by the conformance IRI:

Refer to the EPUB Accessibility specification for more information about these kinds of publications, and how to include the standard identifiers in the Package Document metadata.