WordPress got famous as a blogging platform, so the default front page is showing the latest blog posts. If we add a post, the latest post will show up on the top of the front page.
Before you create any contents for your WordPress site, you should understand the major differences of between a post and a page in WordPress. For best SEO result, I will try to create most of my new contents with posts instead of pages.
Here’s the 1st video tutorials on how to create a new post: