The Publications module is desgned for long documents, like newsletters, that are easier to read when divided into smaller sections. Each publication has a table of contents that lists the articles; clicking an article displays it on the same page. You can also navigate directly between articles.
Clicking the printer-friendly link within any article displays the entire publication for easy printing.
Here are two example publications. These are only excerpts, to demonstrate the Publications module (please don't actually use them to do your taxes or set up a computer).