Signe Hammarsten-Jansson Signe Hammarsten-Jansson Signe "Ham" Hammarsten-Jansson (née Hammarsten, 1 June 1882 Hannäs, Sweden - 6 June 1970 Porvoo) was a Swedish graphic artist who designed, among other things, around 220 Finnish postage stamps during the course of three decades. She was the mother of Tove Jansson, creator of the highly successful "Moomin" characters. Signe Hammarsten came from a respectable Swedish clerical family and was the child of a pastor's daughter and a court chaplain. Hammarsten's parents were opposed to her becoming an artist, and as a girl she had considered a career as a surgeon. Hammarsten went through 8 years of
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