Signe Hammarsten-Jansson Hammarsten-Jansson designed over 200 stamps. The couple had three children in total: Tove Jansson, Lars Jansson and Per Olov Jansson. Born to artistic parents, the children grew up in a Bohemian lifestyle, and all became artists in their own right. Tove became a writer and painter and would gain particular fame for her "Moomin" series. Lars became a cartoonist, ultimately becoming responsible for the "Moomin" comic strips as well as a later animated version. Per Olov became a photographer and collaborated with Tove on a few books. The children were directly influenced by their mother's artistic sensibilities and Tove in
Tove Jansson Life of Tove Jansson". From October 2017 to January 2018, the Dulwich Picture Gallery held an exhibition of Jansson's paintings, illustrations, and cartoons. This was the first major retrospective exhibition of her work in the United Kingdom. With a new animated series, "Moominvalley" to be broadcast in 2019, Rhianna Pratchett wrote an article about the impact Tove Jansson had had on her father Sir Terry Pratchett; he called Jansson one of the greatest children's writers there has ever been and credited her writing as one of the reasons he became an author. Tove Jansson Tove Marika Jansson () was a