Use a consistent type throughout. Use large type. Size attracts attention. Arrows, pointing hands, numbers and letters can help clarify the sequence. Resist the temptation to overload the poster.
More material means less communication.
Poster Session Structure allows viewing of each poster paper for an extended period, while the author is present to give an oral presentation and answer questions for a scheduled period. Set-up Time is allowed for mounting each presentation on a 4' x 8' bulletin board which is provided before the start of the session. Bring your own push-pins. All illustrations should be prepared in advance. Proper Illustration is critical to an effective presentation.