This template is meant to be used for content category pages. It produces a box indicating that all articles in the current category should be listed in the category's page, regardless of whether or not they are listed in one or more subcategories. See Wikipedia:Categorization#Subcategorization for more details. See {{Geography parent category}} for a similar template that lists PetScan queries for use in maintenance.

{{All included|topic}}

{{All included|topic|included}}

1. topic (required) – describes the type of information to be included. Usually, this is similar to the category title
2. included (optional) – a shorter description of the topic

{{All included|American film actors}}

For convenience, all American film actors should be included in this category. This includes all American film actors that can also be found in the subcategories.

{{All included|American film actors|actors}}

For convenience, all American film actors should be included in this category. This includes all actors that can also be found in the subcategories.