The welcome reception held on Saturday evening is a great tradition of the IA summit - this opportunity to mingle and meet new people as well as old friends is also the setting for sharing ideas, deliverables and just about anything in the form of (sometimes giant) posters that are displayed (and explained by their creators) to the mingling attendees.
Your submission should include the following:
How and when to submit
Registration: Poster authors may register for the summit at the reduced "additional presenter" rate.