The thesis “The Impact of Europeanization on Formation of Collective Identities in Central Europe, Comparison of the Czech Republic, Slovakia and Poland” deals with the collective identities – at social, national and European level. The main aim of the thesis is to identify significant features, which influence formation of collective identities in The Czech Republic, Slovakia and Poland with using of theoretical concepts, historical context and the data from ISSP National Identity II (2003) and research Eurobarometer (2004 and 2009).