Siri studied in Helsinki and now lives with her family in Vantaa, Finland. She is an author, dramatist and theatre instructor and is very active in Finnish literary circles. She's written 13 books for children, of which The Robbersons is her breakthrough with a film of the book out and a second in production. It is one of the most widely known and translated middle grade novels from Finland, and Siri continues to receive invitations to tour from around the world. The book won the Finlandia Junior Prize, was included in the IBBY Honour List and won the Zilveren Griffel, which is the most important award a translated book can receive in the Netherlands. Kolu's stories combine the essence of Astrid Lindgren and Roald Dahl with explosive humour.