Swedish literature by many. The Swedish language is an official language in Finland, with approximately 5.6% of the population having it as their mother tongue. Hence Swedish language literature has a considerable following in Finland, with several well-known Swedish-speaking Finnish writers, such as Bo Carpelan, Christer Kihlman and Tove Jansson. Jansson, perhaps best known for her Moomin books for children, wrote novels and short stories for adults, including "Sommarboken", (1972, "The Summer Book"). A cultural body representing such literature is the Society of Swedish Literature in Finland, which describes itself as "a versatile and future-oriented cultural institution of Finland-Swedish literature, culture and
Jansson C language cross platform (including Unix, and Windows) package capable of encoding, decoding and manipulating JSON data Jansson Jansson is a Swedish patronymic surname, meaning "son of Jan", derived from Johannes, a cognate of John. There are alternate Belgian, German, Dutch, Danish, Latvian and Norwegian spellings. Jansson is rare as a given name. As of 2014, 86.2% of all known bearers of the surname "Jansson" were residents of Sweden, 5.1% of Finland, 2.9% of the United States and 1.7% of Norway. In Sweden, the frequency of the surname was higher than national average (1:199) in the following counties: In Finland,