# Quick guide

This Quick guide helps you get familiar with Atlas through 

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