Poster Communications are primarily a tool to allow authors to discuss their research with others. They should contain enough information, together with that in the published abstract, to give readers a good overall understanding of the research. Authors should follow recommendations on font and text size closely. Choice of colours etc. is up to the authors but legibility is paramount - colour clashes (e.g. green text on red background) should be avoided.
Poster dimensions for this meeting are as follows:
Standard A0 (841mm x 1189 mm)
Portrait orientation (i.e. height longer than width)
More detailed guidelines can be found here.