Font size and type are important for legibility. Though text size may vary from poster to poster, the following principles can be broadly applied to research posters:
The general design rule for choosing fonts for a poster is to include no more than 2 font types. To balance headers with body text, you may wish to use both sans serif and serif fonts.
Commonly Recommended: Sans-serif fonts such as Arial, Gill Sans, Helvetica, and Verdana for body and heading text.
Serif fonts such as Times New Roman and Garamond are recommend for use as headings.