The catalog looks at Traditionalism in terms of activities and of groups, both of which are then classified in several different ways.
Activities are classified by medium (type of activity, such as journal, publishing, or website) and by the language or languages used.
Groups responsible for these activities are classified by size and by location. They are also classified by primary perspective (such as Evolian, Schuonian, or Hindu) and by degree of Traditionalism: "purely," "partly" or "incidentally" Traditionalist.
- A "purely" Traditionalist group views everything from its particular Traditionalist perspective
- A "partly" Traditionalist group mixes perspectives, or is at least interested in perspectives that do not derive in any way from Traditionalism.
- An "incidentally" Traditionalist group is one with a perspective that derives mostly from something other than Traditionalism, but which has some degree of interest in Traditionalism.
The system of classification of groups used in this catalog makes a basic distinction between political and spiritual (or religious) Traditionalism. In one sense, this is an invalid distinction, but it does serve to distinguish what are clearly different varieties of Traditionalism. A few groups and individuals are classified not as political or religious but as "cultural," "scholarly" (like this website), or "commercial"--the category used for groups that are primarily financial, rather than Traditionalist, in their motivations.
All the groups and individuals in the catalog have been given a "star rating" for importance, and those with the maximum of five stars appear first on all reports, followed by those with four starts, and so on. The objective is to signal to users of the catalog which groups and activities are most immediately worth investigating further.