The form of the first names depends on the person's nationality.

Example: Johan Oxenstierna, Johann Faltz and John Ruthwen.

The last name of persons, names of institutions (such as the parliament and the King’s Council) and also names of cities.

Names have been modernized according to guidelines from (1) The Dictionary of Swedish National Biography, (2) The Swedish National Encyclopaedia, (3) current scientific literature, and (4) indexes in the National Archives.

The names of royals are given in the Swedish name form (e.g. Ludvig XIII), names of princes are given with the addition of the princely house or principality (e.g. Bernard of Sachsen-Weimar).

Title of the sender or recipient is given if possible, even when it is not specified in the source.

Where possible, titles have been supplemented with information on e.g. county .

The text of the letters is based on the dispatched original. If this is missing, the editor has used a copy or draft. Textual variants from other versions are only noted if the editor has deemed them of importance to the language or interpretation of the text.

All kinds of source publications have been noted, except AOSB. This information is presented in abbreviated form (usually with name of editor / mainword + year) and is linked to a list containing the full bibliographical data.

Each post in the database has a unique identity number.

Here it is possible to do full text search on words appearing in summaries of the content of letters or in headlines to documents.