Tove Jansson in exhibitions during the 1930s and early 1940s, and her first solo exhibition was held in 1943. Despite generally positive reviews, criticism induced Jansson to refine her style such that in her 1955 solo exhibition her style had become less overloaded in terms of detail and content. Between 1960 and 1970 Jansson held five more solo exhibitions. Jansson also created a series of commissioned murals and public works throughout her career, which may still be viewed in their original locations. These works of Jansson's included: In addition to providing the illustrations for her own Moomin books, Jansson also illustrated Swedish
Society of Swedish Literature in Finland and Swedish culture in Finland were under threat from the Finnish side. Leading cultural figures endorsed the need for an organization to preserve and mediate the Swedish cultural heritage in Finland. At the same time they sought to strengthen the identity of the Swedish-speaking population, and its understanding of its own culture. Today SLS has over 1,100 members, with around 100 employees in Helsinki and Vaasa. The SLS archives are a rich source of knowledge about Swedish-speaking Finland, its history, traditions, literature, languages, everyday life and folk music. SLS documents contemporary society and accepts donations of cultural and historical material