In this tutorial we will be adding a new content category in Joomla 2.5.
To begin navigate to Content > Category Manager > Add New Category
Enter a Title for the category.
If you set an alias, that's what will be used when creating SEF URLs with the category name in them.
You can make this category a child of another category
You can set the default access for this category.
You can also choose the languages that this category applies to.
If you set a description that will be shown on the main categroy view page.
There is a complete granular permissions system giving you the ability to choose exactly what any level of user on your site can do to articles in any category.
If you wat to set a default user that new posts are shown as created by you can set that here.
You can also change the layout for this category. This can only be done if the template you're using supports multiple layouts.
You can also choose an image to identify the category and add notes.
You can also set the most popular metadata information.
When you have the category setup, you'll want to save it.