> For the complete documentation index, see [llms.txt](https://docs.finngen.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.finngen.fi/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide.md).

# Quick guide

This Quick guide helps you get familiar with Atlas through

* [introducing ](/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide/introduction-to-ohdsi-omop-cdm-and-atlas.md)OHDSI, OMOP CDM and Atlas, and used terminology
* providing sources of help for [formulating your research question into concepts and cohorts](/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide/from-research-question-to-concepts-and-cohort-building.md)
* showing the [steps in building cohorts](/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide/using-atlas-in-sandbox.md) in Atlas with FinnGen data
* providing [worked examples](/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide/examples-on-cohort-building-with-atlas.md) on building various types of cohorts