Galleries exist to present readers with a structured and meaningful collection of the media found here on Ryzom Commons. Usually, they are created to give a sample or overview of all the media on a given topic.
When creating a new gallery, a few things should always be included:
Depending on the subject, there are other things you may want to included in a gallery. This may be a navigation bar, a taxonomy box, links to sister projects besides Ryzom Wiki, among other things specific to the topic.
Unlike naming categories, where English is almost always used, galleries should be named in language most associated with the subject. This applies to people, places, art, culture, etc. For general subjects and ones not tied to any specific language, the name most likely to be searched for (usually English) should be used. An exception to this rule is the naming of galleries of organisms and subjects where Latin names are considered universal. These follow the same guidelines as categories and should share the same name.
Not every subject should have its own gallery even if it has its own category. Likewise, not every subject should have its own category even if it has its own gallery. Galleries should not be created if they merely duplicate the purpose of a category. However, this does not mean they should be deleted or "merged". Categories will always be categories, but galleries can turn into something much more.
Commons does not have an equivalent to Ryzom Wiki's "stub" articles. Our goal is not to simply have a gallery on every notable or noteworthy subject. They should be created with a specific purpose. A single image on a page is not a gallery.
It is recommended to create redirects from names in other languages, especially if a gallery's name is not English. Redirects from the plural form and other variations may also be useful.
In the absence of a gallery, or if there is only a gallery with little or no content, a gallery title can be redirected to a corresponding category (a cross-namespace redirect). To make sure that the redirect isn't included in the category, the colon (":") should be used before the target, e.g.
#REDIRECT [[:Category:Foobar]]. The biggest issue concerning galleries is their relationship with categories. Many times these two systems appear to be redundant with each other. This isn't (or shouldn't) be the case. They can co-exist. Galleries and categories may both accomplish the same goal—to help users find media—but in very different ways. Categories should contain all files related to the subject while galleries should contain a sample of files related to the subject. Ideally, galleries should contain the best of what we have. All files should be in at least one category, but not all files should be in a gallery.
Galleries can do a few things that categories don't. They can show captions and information regarding each image, and group images into sections. Images in a gallery can be arranged in chronological, geographical, thematic or other informative order. Galleries can exclude poorer quality and redundant images that fill some categories and impede users who simply are looking for a good image, say, to illustrate a Ryzom Wiki article. On the other hand, for users seeking a very specific image, the wider selection usually included in a category may make it worth the extra time.
Adding new images to categories is quicker and easier than adding them to galleries. The user doesn't even have to leave the image's page in order to include it in a category. The right categories are more likely to already exist than the right gallery. Files can be added to non-existent categories but not to non-existent galleries. Categories group all related images together which aids in the creation of galleries, but this doesn't work as well the other way around if galleries only include the best images.