WordPress categories and tags are a way to add an organisational structure to your  WordPress posts.


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WordPress Categories


WordPress categories are basic ways for you to organise your posts into different  categories, such as topics. 


For example, when writing a post, think of the wider topic of the post. If you plan to  write more posts about this topic in the future, you’ll probably want to group these posts together. 


From the post editor page, find the Categories box.



Adding a New Category


If you don’t have any categories yet, click the + Add new category link. Add a new  category and click Add new category . You’ll then see your new category has been added to the list of categories.

 

To assign a category to a post, click the checkbox next to the category.


Another way to manage post categories is through the Posts > Categories link in  the WordPress dashboard navigation menu. Clicking the Categories link will display the Categories page. From here, you can see all your categories on the right, and where to add new ones. 



Category Slug


The Category Slug is the URL friendly  version of the category. It is usually all lowercase and contains only letters, numbers and hyphens. 



Category Hierarchies


Categories, unlike tags, can be nested into hierarchies.


For example, you might have a Jazz category, and under that have children  categories for Bebop and big band. 



Category Description


The description section is a place for you to add more details about the posts  assigned to that category. Some WordPress themes may show this information.



WordPress Categories vs. Tags


What’s the difference between categories and tags? Think of your site like a book.  Categories are like the Table of Contents and tags are like the terms in the index.