> For the complete documentation index, see [llms.txt](https://docs.langstack.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.langstack.com/welcome/get-started/learn-langstack/basics-and-essentials/next-steps.md).

# Next Steps

After getting to know the fundamental concepts of Langstack, you can explore exercises demonstrating how they work in the following sections.

1. [Introduction to REST APIs](/welcome/get-started/learn-langstack/introduction-to-rest-api.md)
2. [Introduction to Entities](/welcome/get-started/learn-langstack/introduction-to-entities.md)
3. [Using Triggers](/welcome/get-started/learn-langstack/using-triggers.md)
4. [Introduction to ETL pipeline](/welcome/get-started/learn-langstack/introduction-to-etl-pipeline.md)
5. [Validation pipeline](/welcome/get-started/learn-langstack/validation-pipeline.md)
6. [Introduction to Process](/welcome/get-started/learn-langstack/introduction-to-process.md)