Kalle works together with illustrator Mari Ahokoivu and their books Livi&Nate (originally Sanni&Joonas) have been translated into five languages.
In addition to the books, they have also created over five years of one page strips for the biggest children's magazine in Finland.
Kalle has worked as a director of the Helsinki Comics Festival and is a co-founder of Sarjakuvakeskus - the Comics Center in Helsinki. Kalle also promotes Finnish comics all over the world and works closely together with Finnish Literature Fund.
FILI – Finnish Literature Exchange website: fili.fi/en