Tove Jansson "Pessi and Illusia", a ballet by Ahti Sonninen ("Radio tekee murron") which was performed at the Finnish National Opera. By 1958, Jansson began to become directly involved in theater as Lilla Teater produced "Troll i kulisserna" ("Troll in the wings"), a play with lyrics by Jansson and music composed by Erna Tauro. The production was a success, and later performances were held in Sweden and Norway. In 1974 the first Moomin opera was produced, with music composed by Ilkka Kuusisto. The biennial Hans Christian Andersen Award conferred by the International Board on Books for Young People is the highest recognition
Sophia Jansson "Jaana" in 1965. In May 2003, The Finnish Embassy in London arranged for events to surround the recent translation of Tove Jansson's 1972 "Sommarboken", a novel which featured the fictionalized life of the young Sophia on an island. During this event, publishers presented works by Sophia Jansson and Johanna Sinisalo. Jansson was later interviewed in June 2003 by "The Daily Telegraph" where she explained the details surrounding the story presented in "Sommarboken" and the relationship shared between Jansson and her aunt, Tove Jansson. She would write in more detail about this topic in 2006 in the Scandinavian Review, and again