Joomla! is all about allowing you to create a site that matches your vision. The possibilities are limitless; this sample site will get you started.
There are a few things you should know to get you started.
Every Joomla! website has two parts: the Site (which is what your site visitors see) and the Administrator (which is where you will do a lot of the site management). You need to log in to the Administrator separately with the same username and password. There is a link to the administrator on the top menu that you will see when you log in.
You can edit articles in the Site by clicking on the edit icon. You can create a new article by clicking on the Create Article link in the top menu.
To do basic changes to the appearance your site click Home, Site Settings and Home, Template Settings.