What are the key differences between Pages and Posts on WordPress? Well, there are a few.
To start off, as our professor Lorelle says: “Pages are timeless, and Posts are timely.”
What this means is that a Page is content that will rarely change, where as a Post is a piece of content that is relevant at the time.
One feature of WordPress that serves to emphasize this fact is that the URL to a post includes the date of the post, i.e.:
…whereas the URL to a page does not include date information:
Examples of Pages include “About”, “Contact”, and “Policies”.
These will be listed in a navigation bar somewhere on all of your pages (although, it is worth noting that any link or content can appear in the main navigation bar, through the use of customizable menus). Posts are whatever you feel like writing about at the moment. On any typical blog, there will only be a few Pages, but there might be hundreds of Posts (although technically there is no limitation to the amount of pages that a WordPress blog can feature, it is probably bad practice to include more than a handful of them).
Another difference is that Posts are listed in reverse chronological order, so that the most current information is always at the top of the blog (with the exception of sticky posts, which always stay at the top). Posts can also be sorted by Categories or Tags. They frequently also feature a comments section for conversation on the subject of the post.
Pages are static. They are not sorted by date, or in any other manner. They do not include Categories or Tags, and they usually do not allow comments.
There are many ways to navigate a WordPress site, and it is up to the administrator to design the menus and categories in a way that provide easy navigation. However, from what I have seen, it is common practice to place links to pages (or possibly post categories) in the main navigation menu, and to link to the remaining post categories and tags through sidebar widgets such as categories and tag clouds.
These are by no means hard and fast rules. Pages and posts can be arranged, linked to, and laid out in any way desired. However, if you want your site to be navigable, it can be very useful to follow these guidelines.