Hilma af Klint - The Ten Largest No. 5 Adulthood Poster

The Ten Largest No. 5 Adulthood poster by Hilma af Klint, 1907. 

Hilma af Klint was a Swedish artist and mystic whose paintings were amongst the first abstract art. She belonged to a group called 'The Five' and the paintings or diagrams were a visual representation of complex philosophical ideas.