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 ?
W Lifestyle, Hobbies & Leisure
Use for: (all W* codes) popular accounts for general readership. Prefer Sections A*, K*, P*, R*, T*, etc, as appropriate, for specialist & academic works
WN Nature & the natural world: general interest
Use for: (all WN* codes) popular works only. Prefer codes from Sections P*, R*, T* etc, as appropriate for specialist & academic works
WNW The Earth: natural history: general interest
Use for: popular works on natural history of the Earth as a whole, physical features & 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 & climate: general interest
Use for: popular works on weather & climate including storms & other extreme weather conditions. See also: RBP Meteorology & climatology

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