Every Post in WordPress is filed under one or more Categories. Categories allow the classification of your Posts into groups and subgroups, thereby aiding viewers in the navigation and use of your site.
There is no tag wiki for this tag … yet!
Tag wikis help introduce newcomers to the tag. They contain an overview of the topic defined by the tag, along with guidelines on its usage.
All registered users may propose new tag wikis.
(Note that if you have less than 20000 reputation, your tag wiki will be peer reviewed before it is published.)