EU after the biggest enlargement (i.a. economic, social, political and legal aspects of the European integration of the new Member States; experiences of the 15 years of membership, the functioning of the internal market in the EU, European Funds as a support to development and integration in the EU, European funds in the perspective of 2021-2027, the role of the European Union in the global economy)

The integration of Poland with the European Union (i.a. economic, social, political and legal aspects of the integration of Poland with the EU; experiences of the 15 years of membership; structural changes in the Polish economy after accession, regional development in Poland in the light of EU cohesion policy, competitiveness of Polish enterprises on the EU market)

Challenges of the EU (i.a. Brexit, internal challenges of the integration, the future of the EU, migration, refugee crisis, the EU in the modern world and facing global challenges).