‘Kaytek the Wizard’ by Janusz Korczak – Gallery Opis A series of illustrations by the Israeli illustrator Avi Katz to ‘Kaytek the Wizard’ – one of the most famous and beloved children's books in Poland, written in 1933 by the famous pedagogue, writer, doctor and social activist Janusz Korczak. Hashtag (topic) #language & literature Tags janusz korczak