Open Sans Font is actually a humanist sans serif typeface created by Steve Matteson, Type Director of Ascender Corp. This version includes the comprehensive 897 character set, which includes the standard ISO Latin 1, Latin CE, Greek and Cyrillic character sets. Open Sans was created with an upright anxiety, open forms along with a neutral, however friendly look. It was optimized for print, web, and mobile interfaces, and has fantastic legibility characteristics in its letterforms.