The pattern is based on Ylva Källström-Eklund’s dust jacket and illustration of three song booklets from the late 50 ́s, which were amalgamated into the book Våra visor (1960). The authors of the book included Lennart Hellsing. Ylva’s illustrations are spontaneous, graphic and filled with clever details. The book was used in schools for many years. Sandberg is proud to give new life to these clever characters from famous Swedish children’s songs.