Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2 1.1 1.0.

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

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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
WNW The Earth: natural history: general interest
Use for: popular works on natural history of the Earth as a whole, physical features and systems as well as life on Earth, popular works on volcanoes, earthquakes etc.
See also: RB* Earth sciences and its subcategories, PSAF Ecological science, the Biosphere
WNWM Weather and climate: general interest
Use for: popular works on weather and climate including storms and other extreme weather conditions.
See also: RBP Meteorology and climatology

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