This is the English version of the collection of articles, written during the IUF project. The book is almost ready. There is one important article missing, which Eva Toulouze is working on. Moreover, the editors have still to work on the manuscript, to eliminate repetitions, to decide whether all the articles have to be included. Language editing for the translations is still very much needed. After this work, approximately by June 2023, the manuscript shall be submitted to the publishing house of Tallinn University.