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 ?
1 Place qualifiers
DO NOT USE “1” on individual books, but select qualifiers from section 1* as appropriate
1Z Space, planets & extraterrestrial locations
Use for: works beyond the earth where a location has meaning either in setting or subject for the majority of the work
1ZM The Solar System 1.2

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