Overview categories

Overview of the categories used in this wiki, including their organization:
 * Pages and images should be labelled with at least one subcategory.
 * All subcategories should be labelled with at least one overall category.
 * Pages and images should never be labelled with an 'overall' category.

NOTE: Working on this one; KarinS

=Image Galleries / Overall category=

Plese do not use the Category 'Image'.