Ellen Key's  literature-related work, her place in the Modern Breakthrough, her reception in Hungary. Ellen Key wrote more than 40 books and nearly 300 articles and essays. Concerning her literary works her one and only tale and several biographies can be mention. Yet she had an enormous influence and role as a debater in the Scandinavian  strong movement of naturalism and debating literature at the end of the 19th century.

In 1919 Ida Tabódy saved the teacher training institute in Pressburg by moving  teachers, trainees and its equipment to Cinkota, Hungary. The institute remained  till 1959.

The fundamental issues of bilingualism, bilingual education,  with special focus on bilingual  visual arts and music instruction.