A body of knowledge (BOK or BoK) is the complete set of concepts, terms and activities that make up a professional domain, as defined by the relevant learned society or professional association. It is a type of knowledge representation by any knowledge organization. Several definitions of BOK have been developed, for example:
A body of knowledge is the accepted ontology for a specific domain. A BOK is more than simply a collection of terms; a professional reading list; a library; a website or a collection of websites; a description of professional functions; or even a collection of information.
The following are examples of bodies of knowledge from professional organisations: