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

# Key Notions

Let's dive into a quick overview on some concepts that you will need to grasp to understand Jur.