BIC Subject Categories and Qualifiers

This is BIC’s Subject Categories and Qualifiers Scheme, version 2.1 released November 2010, the standard classification scheme for the UK book trade and some other English language markets, available from

Note that BIC has announced that there will be no further development of the BIC scheme, and that Thema is the preferred subject scheme for future use. Browse the latest version of the Thema international, multilingual subject category scheme here.

See the Search hints below

Code Description
T Technology, engineering, agriculture
Do not use “T” on individual books; select appropriate code(s) from Section T below
TH Energy technology and engineering
THF Fossil fuel technologies
THK Nuclear power and engineering
THN Heat transfer processes
THR Electrical engineering
THT Energy efficiency
THX Alternative and renewable energy sources and technology

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