# Atlas

Atlas is a cohort building tool from the Observational Health Data Sciences and Informatics [(OHDSI) program](https://www.ohdsi.org/).&#x20;

See the [Quick guide](https://docs.finngen.fi/working-in-the-sandbox/which-tools-are-available/atlas/quick-guide) for getting started with Atlas and building your first cohorts.&#x20;

See the [Detailed guide](https://docs.finngen.fi/working-in-the-sandbox/which-tools-are-available/atlas/detailed-guide) for more information and more features of the Atlas tool.&#x20;