> ## Documentation Index
> Fetch the complete documentation index at: https://docs.embedreach.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Overview of Segments

# Segments

Reach's Segments system provides a powerful way to group and target users based on specific criteria. Segments are dynamic collections of users that automatically update as users meet or no longer meet the defined conditions.

<Note>
  Segments are primarily used in [automations](/automations/introduction) to target communications to specific groups of users.
</Note>

<CardGroup cols={2}>
  <Card title="Segments" icon="tags" href="/segments/segments">
    Learn how to create and manage segments to group users based on specific criteria
  </Card>
</CardGroup>