# Indexes in Amazon Kendra
<a name="hiw-index"></a>

An index holds the contents of your documents and is structured in a way to make the documents searchable. This section provides an overview of the supported index types and index features.

**Topics**
+ [Index types in Amazon Kendra](hiw-index-types.md)
+ [Adding documents to an index in Amazon Kendra](hiw-index-adding-docs.md)
+ [Using Amazon Kendra reserved or common document fields](index-reserved-fields-hiw.md)
+ [Retrieving responses from indexes in Amazon Kendra](index-searching.md)