Isotype

Also known as the International System of Typographic Picture Education - this is a method of showing social, biological and historical connections in pictorial form. This Graphic process has been present throughout design since 1930 and is still used within modern day design. 

This process was created by Austrian philosopher and curator Otto Neurath “as a symbolic way of representing quantitative information via easily interpretable icons.” Despite the images above looking almost present day they infact date back to the 1930s. A truly timeless piece of design.