Tove Jansson periodicals and daily papers. During this period, Jansson also designed many book covers, adverts and postcards. Following her mother's example, she drew illustrations for "Garm", an anti-fascist Finnish-Swedish satirical magazine. She was briefly engaged in the 1940s to Atos Wirtanen. During her later studies, Jansson met her future partner Tuulikki Pietilä. The two women collaborated on many works and projects, including a model of the Moominhouse, in collaboration with Pentti Eistola. This is now exhibited at the Moomin museum in Tampere. Jansson wrote and illustrated her first Moomin book, "The Moomins and the Great Flood", in 1945, during World War
Finnish name share the same surname. All persons have the right to change their surname once without any specific reason. A surname that is un-Finnish, contrary to the usages of the Swedish or Finnish languages, or in use by any person resident in Finland cannot be accepted as the new name, unless valid family reasons or religious or national customs give a reason for waiving this requirement. However, persons may change their surname to any surname that has ever been used by their ancestors, if they can prove such claim. Surnames behave like regular words when forming grammatical cases. Thus, for example,