At first glance, pages look very similar to posts. Both pages and posts have a title and a content area in which we can write extended text. However, pages are handled quite differently from posts. First of all, pages don't have categories, or tags. Moreover, posts belong to your blog, which are meant to be a part of an ongoing expanding section of your website, and are added regularly; pages, on the other hand, are more static and aren't generally expected to change that much.
In short, I would advise to treat pages as pieces of static content, and posts as series of articles published in a timely manner. In other words, pages are meant to hold content that is equally up-to-date no matter whenever it is read. Posts are often very time sensitive and present advice/news that's important today/now. For most blogs, posts are the pillar of their content and make up more than 90 percent of the site. Furthermore, posts appear in the RSS feed of a WordPress blog, while pages don't.
When you...