1. Wim Crouwel

Wim Crouwel is a Dutch graphic designer, type designer and typographer. He left art school to become a painter, but found he loved to organize information on a page and started creating posters in 1952. He started designing catalogues and posters for museums, later founding a studio, Total Design. Crouwel loved Helvetica, is a modernist, functionalist and purist. He created many wordmarks and the famous New Alphabet.

http://www.iconofgraphics.com/Wim-Crouwel/