While the term "Heathenry" is used widely to describe the religion as a whole, many groups prefer different designations, influenced by their regional focus and ideological preferences. Heathens focusing on Scandinavian sources sometimes use Ásatrú, Vanatrú, or Forn Sed; practitioners focusing on Anglo-Saxon traditions use Fyrnsidu or Theodism; those emphasising German traditions use Irminism; and those Heathens who espouse folkish and far-right perspectives tend to favor the terms Odinism, Wotanism, Wodenism, or Odalism. Scholarly estimates put the number of Heathens at no more than 20,000 worldwide, with communities of practitioners active in Europe, the Americas, and Australasia.