Pasi Pitkänen has become known for his richly detailed illustrative work on several children’s books such as the extremely popular Monster Nanny trilogy by Tuutikki Tolonen. He has also worked at Rovio Entertainment as an illustrator, character designer, and graphic designer. Pitkänen is the illustrator of the popular Kepler62 series and the author of two Children's titles Monster Tournament and The Island of Lost Animals.

Among Pitkänen’s hobbies are quantum physics, people-watching, B-movies, insects and baking.