In 1919 he published a three-volume collected works of the 16th-century poet Jan Kochanowski, who had founded Polish literary language; in 1925 the book on Władysław Reymont, commemorating Reymont's Nobel Prize in Literature; and the same year became president of the Polish PEN Club after the death of Stefan Żeromski.
Stefan Edberg | Stefan Sagmeister | Stefan Lazarević | Stefan Zweig | Stefan Raab | Stefan Heym | Ştefan Voitec | Stefan Dennis | Stefan Żeromski | Stefan Wyszyński | Stefan Nemanja | Stefan Karlsson | Stefan Brockhoff | Stefan Aust | Adam Stefan Sapieha | Stefan Weisman | Ştefan Vodă | Stefan Skarbek | Stefan Simonsson | Stefan Olsson | Stefan Lorant | Stefan Lochner | Stefan Heidemann | Stefan Guzy | Stefan Gryff | Stefan Grossman | Stefan Everts | Stefan Danailov | Tadeusz Stefan Zieliński | Sveti Stefan |
He illustrated nearly 200 classic books published in Poland, e.g. Voltaire's Powiastki filozoficzne (1948), Henryk Sienkiewicz's Potop (1949), Ignacy Krasicki's Monachomachia (1953), Stefan Żeromski's Popioły (1954), Mark Twain's The Prince and the Pauper (1954), Frances Burnett's A Little Princess (1959), Bolesław Prus' Lalka (1962) and Emancypantki (1972).