Poster Research

1) Try to keep 40% of the poster area empty of text and images.
2) Try to use no more than three fonts in your document.
3) Use large fonts that can be easily read from 5 feet away.
4) If your trying to make a large bold statement you may have to go with something more like a   
display font. 
5) The purpose of your poster should be thought about in great detail when you prepare to start designing.


 http://www.personal.psu.edu/drs18/postershow/
 http://lifestyle.iloveindia.com/lounge/how-to-make-a-poster-6032.html