There are several items you might like to take with you to the interview.
Some of these will be useful for you to refer to; others are for the selection panel to look at:
You may also wants to take along one of two examples of things you've done which are relevant to the position,such as a short report you've written, a brochure or pamphlet you've produced, a sample of a spreadsheet you've set up.
Make sure you don't give them anything too long, and be prepared to leave the sample with the panel if they are interested in it.
The selection panel may not have time or may not wish to look at such documents, but bringing them along shows that you are well prepared.