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
Per Olov Jansson rely heavily on perspective and the relationship between light, dark, and medium contrast. During the 1950s, he formed a company called Aerofoto with his brother Lars. Despite his long photographic career, Jansson's first photo exhibition only occurred in 2000 to coincide with his 80th birthday. Per Olov Jansson Per Olov Jansson (born 22 April 1920 Helsinki, Finland) is a Finnish photographer. He is the son of artists Viktor Jansson and Swedish-born Signe Hammarsten-Jansson, and the brother of writer Tove Jansson and cartoonist Lars Jansson. His photography has appeared in books by Tove Jansson, including "Skurken i muminhuset" (1980) and "Anteckningar