TITLE: What is a good poster for a math conference?
QUESTION [25 upvotes]: I'm going to participate to a conference and they ask me to do a poster on my research. I've never made a poster for a conference/seen a poster session in a conference. So what is important? What do you want to see in a poster (references, basic definitions and ideas)? What are the things that must not appear in a poster (completed proofs?)? What is a poster session?
PS : My subject of research is about PDE (theoretical point of view : existence of a solution, regularity, unicity) and I'm going to a conference about Numerical Analysis (mostly) and PDE.

REPLY [7 votes]: Know your audience so that you can communicate to them most effectively.
Text should be large enough to be seen from 5 feet away.
The pieces should be organized in a way that leads the viewer through the display.
Make illustrations simple and bold.
The display should be self-explanatory so that you are free to talk.
Keep displays simple and text brief; a viewer should "get it" in 30 seconds. 
You can provide in-depth information in a handout.
A neutral colored poster on matte board is more pleasing to the eye than one on a bright colored background.
Organize your material and edit your content to eliminate distracting visual noise. 
When in doubt, edit out; make sure every item is necessary.
Take a note pad and pen for notes, extra thumbtacks, pins, tape or glue.
Here are some templates of posters. you can use of online latex to make a nice poster with Latex . https://www.overleaf.com/gallery/tagged/poster
And http://www.latextemplates.com/cat/conference-posters
Here is good advise to make a scientific  poster http://www.personal.psu.edu/drs18/postershow/