---
title: Document
description: Everything you need to know about documents and their contents.

---

- [Content](/reference/document/content/llms.txt)
- [Document Design](/reference/document/document-design/llms.txt)
- [Includes](/reference/document/includes/llms.txt)
- [Metadata](/reference/document/metadata/llms.txt)
- [Migration](/reference/document/migration/llms.txt) — Learn how to migrate documents as your document structures evolve. This guide explores the two migration approaches, On-Read Migrations and Data Migrations, outlining their differences, best use cases, and how to combine them.
- [References](/reference/document/references/llms.txt)