Andrzej Leder is a philosopher of culture and psychotherapist. He is currently employed as Associate Professor at the Institute of Philosophy and Sociology of the Polish Academy of Sciences. Between 1992 and 2012 Andrzej Leder was a member of the editing board of the journal Res Publica Nowa. His book Prześniona rewolucja. Ćwiczenie z logiki historycznej published in 2015 has been widely acclaimed as an inspiring and innovative approach to 20th century Polish history and contemporary Polish culture. German translation of this book is due in April 2019.