> For the complete documentation index, see [llms.txt](https://help.twise.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.twise.ai/content-collections/what-are-collections.md).

# What are collections?

Imagine one of the following cases:

* you own an online shop, and want to add your product assortment to a Twise
* you rent/sell properties, and would want to add your listings to a Twise
* you are a event listing site (tours, concerts, experiences, etc.), and want to add events to a Twise

To support such cases, you can import a special kind of content we call a collection. A Twise will intelligently include your products in the conversation when it is relevant. Using collections, a Twise can transform into a product discovery tool using natural language.

Currently, we support the following collection types:

* `Product`
* `Event`
* `Villa`
* `Page`

A Twise currently is limited to use one collection type at a time.

#### How to add content to a collection?

* Using an API
  * [Adding events](/collections-api-events.md)
* Importing a Google Merchant XML Feed
* [Importing a Twise XML Feed](/importing-a-collection-via-a-twise-xml-feed.md)


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