# Recommended external courses

Explore courses from external providers that CfRR recommends to complement your research coding skills. Each course page explains what you will learn and links to the provider's training.

```{admonition} CfRR recommends: Green Software Practitioner
:class: tip

Learn how to reduce the environmental impact of your software with this free, self-paced course from the Green Software Foundation. Explore sustainable software principles and work towards a digital badge through the provider's course platform.

[Explore Green Software Practitioner](green_software_practitioner.md).
```