Andrzej Szczeklik (Krakow, 1938-2012) graduated from the Faculty of Medicine of the Krakow Medical Academy in 1961, after which he completed his studies in the United States and Sweden. He received an honorary doctorate from various universities and received numerous awards. Patron and friend of artists, he became famous for his improvised piano concerts at the satirical cabaret Piwnica pod Baranami. Cliff published his essay Catharsis. On the healing power of nature and art (2010). In 2012 this publisher published his book Core. About sick people, diseases and the search for the soul of medicine.