History of gill sans my research! :)

Gill Sans was designed by an artist and type designer Arthur Eric Rowton Gill, 

who was inspired by Edward Johnston’s typeface created 

for the London Underground Railroad. 

In 1882 Erik Rowton Gill born in Brighton Sussex. Eric Gill, who had studied under Johnston at London’s Central School of Arts and Crafts, later became a friend and apprentice and even had a small role assisting in creation of the proprietary typeface. 

Eric Gill was a British sculptor, typeface designer and print maker. He was associated with the Arts and Crafts movement.

If one looks at the page and not the words, the font has a characteristic of rounded edge and openness.  The font doesn’t make the page look too dense.