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
P Mathematics and science
Do not use “P” on individual books; select appropriate code(s) from Section P below
PD Science: general issues
PDA Philosophy of science
PDC Scientific nomenclature and classification
PDD Scientific standards
PDE Maths for scientists
PDG Industrial applications of scientific research and technological innovation
PDK Science funding and policy
PDN Scientific equipment, experiments and techniques
PDR Impact of science and technology on society
See also: JFMG “Ethical issues: scientific and technological developments”
PDX History of science
PDZ Popular science
Use with other P* code indicating area of science given popular treatment. See also: WNX “Popular astronomy and space”; TQ “Environmental science, technology and engineering” and following

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