Martina Bigert, born Rosander, has a degree in law. She is working as illustrator, author of children’s books, script writer and director. Bigert has published the books about Barbara, the children’s book Dolly Dott and the Long Tongue (1997) as well as the children’s books about Hetty. The books about Barbara have also been published as a comic strip in Swedish papers and she has also played the main character in five of Bigert’s animated short films.