Reference Topics

Narrower category of information classification, used to categorize references of a given type. (This taxonomy contains the topics for all 3 types of reference.) Multiple topics are allowed on each reference. This taxonomy allows smart classification of content according to its theme (analogous to a 'smart folder'). It is a coarser set of terms than the detailed ones available in other taxonomies, so as to allow a single, simple set of queries to encompass all the topics.