I'm not exactly sure of the format for your situation, as it sounds like you might be presenting your work in front of a group of people..?  Typically, for meet and greets and informal first pass interviews where you don't formally present work to an audience, you should bring what some people call "sample pages" or "design sheets"  these are sheets in the same format as your resume (same header with name and info in same location, portrait instead of landscape, etc.) to be handed out with the resume.  1-4 pages of samples are generally acceptable.  And, of course, it should showcase your best work.  Sometimes it's good to only show one project per page (can have multiple images/drawings per page but stick to one project for that page).  There doesn't need to be any lengthy text, save that for the interview/presentation.  Good luck!