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
1.4
WG Transport: general interest
See also: KNG Transport industries, TR* Transport technology and trades and its subcategories
WGM Aircraft and aviation
Class here: commercial aircraft, airlines, airports.
See also: TRP* Aerospace and aviation technology and its subcategories
1.3

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