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and Processes Facet, book collectors and book clubs in the Entities Facet, the parts of a
book (binding and book jacket, among others) in the Objects Facet, and books them-
selves – the products of intellectual and creative effort – in the Created Works Facet.
This arrangement is intended to facilitate the clear division of terms into comple-
mentary classes rather than merely collecting them according to the general topics to
which they pertain.
As it stands now, no term may occur in more than one position in the TGDT’s hier-
archical structure; future revisions may allow the placement of a term in several locations
- such a structure is called polyhierarchical.
A. Activities and Processes
This facet consists of terms that denote aspects of human endeavor, including actions and
events, physical processes, and more general activities such as fields of study. Examples
include preflighting, chromolithography, philosophy, and exhibitions.
C. Communication, Information, and Language
Terms in the Communication, Information, and Language facet relate to human commu
nication, primarily in visual form – corporate identity, FTP, Roman numerals. Terms
designating the products of creative effort are found in the Created Works facet.
E. Entities
This facet is made up of terms designating people and organizations – e.g., graphic de-
signers and associations, printer’s devils and collection agencies.
O. Objects and Materials
The Objects and Materials facet pertains to physical objects, both countable and un-
countable (e.g., computers and ink) and is subdivided according to their typical uses –
materials, instruments, and equipment.
P. Properties and Concepts
This facet includes terms denoting properties, both measurable and unmeasurable (e.g.,
brightness or leading), or concepts (e.g., equity or algorithms).
S. Styles and Periods
Terms found in this facet include styles identified with particular regions or periods –
De Stijl, Pre-Columbian – and is notable for including many terms in the form of ad-
jectives.
V. Visual Elements
This facet consists of terms that denote visual components of written language or of cre
ated works; for example, side bearings, whitespace, and arabesques.