EPUB Subject Authorities Registry

5 October 2016

Status of this Document

This document is subject to change at any time. The terms defined herein will never be removed, but may be deprecated.

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

Deprecated term are identified by the label [DEPRECATED]. These terms are no longer recommended for use.

Terms without a label are considered stable.

Requests for additions, modifications and clarifications can be made through the Issue Tracker. Pull requests are also welcome.

Refer to the IDPF Issue Reporting Guidelines for more information about the change request process.

1. Overview

This document defines a registry of subject authorities for use in the Package Document dc:subject element's opf:authority attribute.

This registry contains a selection of subject schemes that are commonly used for various types of publications, in various languages, and in various countries. It is not intended to be comprehensive. There are hundreds of possible subject schemes, many of which are discipline specific (e.g., for medicine, computer science, physics, etc.). Preference for inclusion is given to schemes that are broadly useful, but discipline-specific schemes and taxonomies are considered for inclusion if they have a strong support base.

2. Subject Authorities


The Getty Art and Architecture Taxonomy.

<dc:subject opf:authority="aat" opf:term="300008055">abandoned buildings</dc:subject>

The main UK subject scheme for the book supply chain.

<dc:subject opf:authority="bic" opf:term="afcc">Watercolours</dc:subject>

The main US subject scheme for the book supply chain.

<dc:subject opf:authority="bisac" opf:term="FIC033000">FICTION / Westerns</dc:subject>

The main subject classification scheme used in China.

<dc:subject opf:authority="clc" opf:term="P7">海洋学</dc:subject>

The Dewey Decimal Classification system.

<dc:subject opf:authority="ddc" opf:term="178">Ethics of consumption</dc:subject>

The main French subject scheme for the book supply chain.

<dc:subject opf:authority="clil" opf:term="3667">ARTS ET BEAUX LIVRES</dc:subject>

The European multilingual thesaurus.

<dc:subject opf:authority="eurovoc" opf:term="1212">war of independence</dc:subject>

IPTC Media Topics classification scheme for the news industry.

<dc:subject opf:authority="medtop" opf:term="medtop:20000449">epidemic</dc:subject>

Library of Congress Subject Headings.

<dc:subject opf:authority="lcsh" opf:term="sj96005632">Greed</dc:subject>

The main Japanese subject scheme.

<dc:subject opf:authority="ndc" opf:term="910">日本文学</dc:subject>

The international subject scheme for the book supply chain, providing codes that work across many languages.

<dc:subject opf:authority="thema" opf:term="DCA">Classic & pre-20th century poetry</dc:subject>

The Universal Decimal Classification system.

<dc:subject opf:authority="udc" opf:term="159.97">Abnormal psychology</dc:subject>

The main German subject scheme for the book supply chain.

<dc:subject opf:authority="wgs" opf:term="951">Biographien, Autobiographien</dc:subject>