# Book Features

```{warning} Under Construction!

This page will provide a list of some commonly used book features, and sub-pages will provide additional information, specifically:
- the purpose
- how to install them
- how to use them
- where to find the source code

```

The {guilabel}`books-CEG` label indicates a feature developed by us.

List:
- sphinx-thebe int {guilabel}`books-CEG`
- figure inverter
- one
- two 
- free
- look at me!