A survey of all letters required for writing correctly all European languages, both official and regional, could already be found in ISO 6937/2:1983. Recently, this information has been checked thoroughly, and a new survey composed based on the present situation. For a clear understanding a distinction was made between letters required for writing words of the language proper, for those derived from other languages, for geographic indications and personal names, for quotations, and for special typographic effects. The result is shown in the Annexes. The tables are taken from a Technical Report by the same author, in which the decisions taken for the classification are fully described and justified. This report "Letters for Europe" can be ordered directly from the Nederlands Normalisatie-Instituut (NNI) in Delft.
