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.

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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
WG Transport: general interest
See also: KNG Transport industries, TR* Transport technology & trades and its subcategories
WGC Road & motor vehicles: general interest
See also: TRCT Road transport & haulage trades
WGCT Tractors & farm vehicles: general interest
See also: TVD Agricultural engineering & machinery

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