This page contains guidance on the proper use of the categorization function in Wikipedia. The central goal of the category system is to provide navigational links to pages in Wikipedia within a hierarchy of categories. Using essential, defining characteristics of a topic, readers can browse and quickly find sets of pages on topics that are defined by those characteristics.

For proposals to delete, merge, or rename categories, follow the instructions at Categories for discussion. Please use it before undertaking any complicated re-categorization of existing categories or mass creation of new categories.