Wikipedia:Manual of Style/Category pages
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The following is a proposed Wikipedia policy, guideline, or process. The proposal may still be in development, under discussion, or in the process of gathering consensus for adoption. |
Manual of Style (MoS) |
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Scope and purpose
The purpose of the categorisation system is to enhance navigation of Wikipedia by grouping related pages together. As in everything in Wikipedia, its primary purpose is to aid our
The technical process of categorisation (through the adding of a bracketed category name editorially to a page) is covered at
Overview
Generally the contents of a category should be self-explanatory
This can be done through the use of various banner templates such as {{
In addition, some additional explanatory text may be helpful as well – to include a description of the category, indicating what pages it contains, how they should be subcategorized, and so on. But it should be kept concise and directly related to the scope and purpose of the category and not be an attempt to (re-)write an article on the related topic. Categories, as noted above, are designed for navigation and should never be used to replace content. (In other words, we should potentially be able to remove the entire category system and the only loss should be navigation-related and in no way content-related.) Various templates have been developed to make it easier to produce category descriptions; see Category namespace templates.
The desired contents of the category should be described on the category page, similar to how the
The description can also contain links to other pages, in particular to other related categories which do not appear directly as subcategories or parent categories, and to "sister categories" on other projects, such as
A maximum of 200 category entries are displayed per screen. To make navigating large categories easier, a table of contents can be used on the category page - e.g. {{Category TOC}} displays a table of contents (Top, 0–9, A–Z).
Subcategories are split alphabetically along with the articles, which means that the initial screen of a split category may not include all its subcategories. To make all subcategories display on each screen, add a category tree to the text of the category page, as described at the help page under Displaying category trees and page counts.
As with any Wikipedia page, the categories are typically placed at the bottom of the page.
To prevent an excessive amount of white space from appearing on the page, the {{
Avoid transcluding images on a category page unless you can show how it will enhance and aid navigation.
With only a few exceptions, explanatory notes concerning
Interlanguage links work for category pages just as they do for articles, and can be used to link to corresponding categories on other language Wikipedias. These links are held at Wikidata.
Example
As an example Category:Science could be laid out as follows:
{{Portal|Science}}
{{commons category|Science}}
{{cat main|Science}}
'''Science''' is a systematic enterprise that builds and organises knowledge in the form of testable explanations and predictions about the universe.
[[Category:Main topic classifications]]
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In this case the explanation (used here for illustration) of what science is would not be necessary since the vast majority of readers understand what it is and the category does not veer from the essence of the topic.
See also
- Help:Categories – a simple summary for readers
- Wikipedia:Categorization