Mikołaj Ratajczak – philosopher, translator and editor. Assistant Professor in the Research Group on Philosophy of Culture in the Institute of Philosophy and Sociology, Polish Academy of Sciences, visiting lecturer in Kolegium Artes Liberales (Warsaw University) and a member of the editorial collective of the online academic journal for Marxist and Critical Theory “Praktyka Teoretyczna” [Theoretical Practice]. He authored publications on the relation between political philosophy, philosophy of language and philosophy of subject in Polish, English and Italian. Translator of, i.a., Resultate des unmittelbaren Produktionsprozesses by Karl Marx and (together with the Praktyka Teoretyczna collective) Commonwealth by Michael Hardt and Antonio Negri.
The journal founded by Leszek Kołakowski, Bronisław Baczko and Jan Garewicz appears continuously since 1957.