Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

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 ?
W Lifestyle, Hobbies and Leisure
Use all W* codes for: popular accounts for general adult readership. DO NOT USE: code ‘W’ itself, but select specific categories from section W*. Use all W* codes with: other subject categories and qualifiers where appropriate.
Prefer: codes from A*, K*, P*, R*, T*, etc, for specialist, technical and academic works
WN Nature and the natural world: general interest
Use all WN* codes for: popular works only.
Prefer: codes from Sections P*, R*, T* etc, as appropriate for specialist and academic works
WNC Wildlife: general interest
See also: PSV* Zoology and animal sciences and its subcategories
WNCN Wildlife: butterflies, other insects and spiders: general interest
See also: PSVA Zoology: invertebrates

version detail