Educational publications
type: Concept
preferred label: Учебные издания @ru
preferred label: Publicación educacional @es
preferred label: Publication éducative @fr
related: Textbooks

Guides
type: Concept
narrower: Textbooks
preferred label: Руководства @ru
preferred label: Guía @es
preferred label: Manuel @fr

Open educational resources
type: Concept
preferred label: Recursos educativos abiertos @es
preferred label: Ressources éducatives libres @fr
related: Textbooks

Teaching guides
type: Concept
preferred label: Педагогические методические руководства @ru
preferred label: Manual del profesor @es
preferred label: Livre de l'enseignant @fr
related: Textbooks

Teaching materials
type: Concept
preferred label: Учебные материалы @ru
preferred label: Material didáctico @es
preferred label: Matériel didactique @fr
related: Textbooks

Textbooks
type: Concept
member of: Information sources
broader: Guides
is in scheme: UNESCO Thesaurus
preferred label: Учебники @ru
preferred label: Manuel scolaire @fr
preferred label: Libro de texto @es
related: Open educational resources
related: Educational publications
related: Teaching materials
related: Teaching guides

Information sources
type: ConceptGroup
label: Sources d'information @fr
label: Fuentes de información @es
label: Информационные источники @ru
member: Textbooks
notation: 5.30

UNESCO Thesaurus
type: ConceptScheme
preferred label: Тезаурус ЮНЕСКО @ru
preferred label: Thésaurus de l'UNESCO @fr
preferred label: Tesauro de la UNESCO @es

Concept
type: Class

has broader
comment: Broader concepts are typically rendered as parents in a concept hierarchy (tree).
sub property of: Transitive
definition: Relates a concept to a concept that is more general in meaning.

is in scheme
definition: Relates a resource (for example a concept) to a concept scheme in which it is included.

preferred label
comment: skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
comment: The range of skos:prefLabel is the class of RDF plain literals.
comment: A resource has no more than one value of skos:prefLabel per language tag.
sub property of: label
definition: The preferred lexical label for a resource, in a given language.

has related
comment: skos:related is disjoint with skos:broaderTransitive
sub property of: semanticRelation
definition: Relates a concept to a concept with which there is an associative semantic relationship.