# Documentation
GSA's documentation is available at the Oasys GSA Documentation site (opens new window). The documentation is organized into 5 primary areas:
- Tutorials: Step-by-step guides to get you started using GSA for the first time.
- Explanations: General background and conceptual overviews.
- How-To Guides: Step-by-step guides to introduce specific workflows and features.
- Reference: Detailed documentations for all of GSA's features.
- Theory: A collection of resources that explains the theory behind GSA features.
GSA makes use of third party software. Details can be found here.