The siblings wrote the text together and Tove drew the illustrations. The first Moomin comic strip Tove and Lars made together was #14 Moomin Goes Wild West (1957).

In 1957, Lars started to help his sister with the scripts too, as Tove struggled to find time for every project she had at that time. Tove wrote and drew the Moomin comics for The Evening News, helped from the very beginning by Lars who translated the Swedish text into English. At its peak, Moomin comics were published in over 40 countries, 120 newspapers, and read by 20 million people. With the cooperation and help of her younger brother Lars Jansson (1926-2000), the series continued to be published for more than 20 years. The comics by Tove Jansson (1914-2001), began to be published in the British newspaper The Evening News in 1954. The great history of the Moomin comics by Tove and Lars Jansson The exhibition also highlights unique characters appearing only in comics. To celebrate the Moomin 75th Anniversary, Moomin Comic Strips Exhibition – the Art of Tove and Lars Jansson exhibition in Japan will focus on Moomin comics and introduce stories that have not been translated into Japanese. The existence of Moomin comics has helped the Moomin brand become widely known and has contributed to the popularity surrounding the Moomins today. Since then, numerous Moomin exhibitions have delighted Moomin fans in Japan. The very first time Tove Jansson’s original Moomin drawings were exhibited in Japan was in 1997 at the “Moomin and the Children of the Midnight Sun” exhibition, held at 6 different venues around the country.