Thema Subject Categories 1.3

Previous versions of Thema are still available 1.2 1.1 1.0.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
Y Children’s, Teenage & Educational
Use with: (all Y* codes) 5A* values from INTEREST AGE / LEVEL Qualifiers as appropriate
1.3
YR Children’s / Teenage reference material
YRD Children’s / Teenage reference: Dictionaries and language reference
Class here: monolingual dictionaries for school or home use. Use with: (all YRD*) LANGUAGE Qualifiers 2*, as appropriate
1.3
YRE Children’s / Teenage reference: Encyclopaedias, general reference
Use for: non-subject-specific works only; for subject-specific reference works, use YRG
YRG Children’s / Teenage reference: Subject-specific reference
Use with: another Y* code indicating the subject or scope of the reference work
YRW Children’s / Teenage reference: Atlases & maps
Use with: PLACE Qualifiers 1*, as appropriate

version detail