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 its preferred subject scheme for current and future use. Browse the latest version of the Thema international, multilingual subject category scheme here.

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Code Description
T Technology, engineering, agriculture
Do not use “T” on individual books; select appropriate code(s) from Section T below
TB Technology: general issues
For the impact of technology on society, use PDR “Impact of science and technology on society”
TC Biochemical engineering
TD Industrial chemistry and manufacturing technologies
TG Mechanical engineering and materials
TH Energy technology and engineering
TJ Electronics and communications engineering
TN Civil engineering, surveying and building
TQ Environmental science, engineering and technology
Note: use for technical and practical aspects of environment, pollution, waste disposal, etc. See also: RN “The Environment” and following for ‘issues’-based approaches
TR Transport technology and trades
See also: KNG “Transport industries” and following; RPT “Transport planning and policy”; WG “Transport: General Interest” and following
TT Other technologies and applied sciences
TV Agriculture and farming
See also: KNAC “Agriculture and related industries”

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