Follow these step-by-step instructions
        for adding categories to a blog post in
        WordPress.
How to add categories to a blog post
- Edit the desired blog post.
 - To define a new category:
- Click Add New Category.
 - Type in the name of a category you
                wish to create.
 - Click on the drop-down menu to the
                right to select a desired parent
                category.
 - Click Add.
 
 - Click Add New Category.
 - Select the desired category or
            categories in the All
            Categories.
 - Select Update to finish.