The first comic strip, entitled Mumintrollet och jordens undergång (Moomintroll and The End of The World) was a short-lived project for the children's section of the Finland-Swedish leftist newspaper Ny Tid.
At its peak, Moomin appeared in over 40 countries and about 120 papers, with over 20 million readers daily, making it the most successful Finnish comic strip ever published.
Jannson's first Moomin books Comet in Moominland (1946) and Finn Family Moomintroll (1948) had already been translated to English and had been successful in the United Kingdom.
She had already published a long comic strip story Mumintrollet och jordens undergång in the Finland-Swedish Ny Tid newspaper in 1947, which was loosely based on her book Comet in Moominland.
In North America, it was finally sold to the Canadian Toronto Daily Star, but in the United States, no newspaper worthy of note accepted it on its pages.
The comic strips are currently being republished in a set of hardback books, in original publication order, by Canadian publisher Drawn & Quarterly.
The second season, known as sequel anime series Delightful Moomin Family: Adventure Diary (楽しいムーミン一家 冒険日記, Tanoshii Mūmin Ikka: Bōken Nikki) in Japan, has also several episodes based on the comic strip stories more rather than original novels made by Tove Jansson.
The 2014 traditional animated comedy film directed by Xavier Picard and produced by Hanna Hemilä, is based on the Moomin on the Riviera comic strip story and has been first released on 10 October 2014 in Finland to celebrate the 100th anniversary of Tove Jansson's birth.