# Guide through This Documentation

Below is a guide through this documentation, ordered from beginner to advanced:
- If you are new to PyTTOP and would like to determine whether it suits your needs, check [Why PyTTOP](../intro/why).
- To install PyTTOP, follow the instructions [here](../start/Installation).
- To quickly explore a typical usage flow of PyTTOP, start with the [quickstart example](../tutorials/quickstart) tutorial.
- For the detailed introduction, refer to the documentation under each topic.
- While this documentation covers many aspects of PyTTOP, it is impossible to include all the features. For information on each method or function, go to the [API reference](../api/main) and search for the method, or use Python's `help()` function to view the documentation directly.


```{tip}
Multiple versions of this documentation are available, as listed below. You can switch versions using the selector at the lower-right corner of the page, or by directly modifying the URL---for example, changing `pyttop.readthedocs.io/en/stable/*` to `pyttop.readthedocs.io/en/latest/*`.
- **latest**: the newest version of the documentation, usually reflecting features in the current development version. Some features described here may not exist in your installed version; if needed, follow the installation instructions [here](../start/Installation) to update to the latest development version.
- **stable**: corresponds to the most recent version released on PyPI. 
```