Preparing for Thema version 1.4!
The intent behind the formulation of Thema was to develop a descriptive book subject classification system (similar to BISAC) that was suited to the needs of a multi-cultural, multi-lingual book supply chain. A core tenet of the system was that the scheme would be sufficiently flexible to allow an individual market to retain a unique cultural voice, all while remaining a unified and simple-to-adopt scheme.
The Book Industry Study Group (BISG), a NISO member organization, recently published an informative three-part series on the creation and development of Thema.