Ποιος χρονολόγησε Tuulikki Pietilä;

Ida Helmi Tuulikki Pietilä (18 February 1917 – 23 February 2009) was a Finnish graphic artist and professor. Pietilä is considered one of Finland's most influential graphic artists, with her work being shown in multiple art exhibitions. She worked as a teacher at the Academy of Fine Arts, Helsinki, and later trained graphic artists and wrote multiple books about graphic arts. She worked in metal engraving, woodcut, lithography and serigraphy.

Η Τούβε (Τόβε) Γιάνσον (Tove Marika Jansson, 9 Αυγούστου 1914 - 27 Ιουνίου 2001) ήταν Φινλανδή συγγραφέας και εικονογράφος.