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.

See the Search hints below

Code Description
P Mathematics and science
Do not use “P” on individual books; select appropriate code(s) from Section P below
PG Astronomy, space and time
For popular astronomy, use WNX “Popular astronomy and space”; for astrophysics, use PHVB “Astrophysics”; for space travel and exploration, see TTD “Space science”
PGC Theoretical and mathematical astronomy
PGG Astronomical observation: observatories, equipment and methods
PGK Cosmology and the universe
PGM Galaxies and stars
PGS Solar system: the Sun and planets
PGT Astronomical charts and atlases
PGZ Time (chronology), time systems and standards
For horology, see TDPB1 “Clocks, chronometers and watches (horology)”

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