> For the complete documentation index, see [llms.txt](https://concordialang.gitbook.io/concordialang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://concordialang.gitbook.io/concordialang/introduction.md).

# Introduction

- [Understanding Concordia](https://concordialang.gitbook.io/concordialang/introduction/understanding-concordia.md)
- [Overview of the Language](https://concordialang.gitbook.io/concordialang/introduction/language-overview.md)
- [A Small Example](https://concordialang.gitbook.io/concordialang/introduction/an-example.md): This example covers the generation of test data and oracles and the combination of features using states.
- [Using a Plug-in](https://concordialang.gitbook.io/concordialang/introduction/plugins.md)
- [Using Databases](https://concordialang.gitbook.io/concordialang/introduction/databases.md)
- [Command Line Interface](https://concordialang.gitbook.io/concordialang/introduction/cli.md): CLI
- [Configuration file](https://concordialang.gitbook.io/concordialang/introduction/configuration.md)
- [Related things](https://concordialang.gitbook.io/concordialang/introduction/related-things.md)