We would like to inform that under the Sonata Bis project of the National Science Centre “Linguistic diversity in Poland: collateral languages, language-oriented activities and conceptualization of collective identity, no. 2020/38/E/HS2/00006, implemented at the Institute of Slavic Studies, Polish Academy of Sciences, there was an open competition for the position of post-doc. Based on the evaluation of the submitted documents and an interview, the recruitment committee decided to employ dr Maciej Mętrak.