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
Sophia Jansson images, as well as the series of medals that were also issued. In 2006 Jansson was invited as a notable speaker for one of the Monthly Luncheons hosted by IWC Helsinki. In February 2007 Jansson was invited to speak at the Scandinavia House in New York City. In September 2008 Jansson participated as a member of the Committee of Honor in the renowned IBBY World Congress. Jansson participated in the Helsinki Design Week 2008. Sophia Jansson Vivica Sophia Jansson (born 1962) is the daughter of cartoonist Lars Jansson and the niece of the famous Finnish writer and painter Tove Jansson.