# Concepts

How AdPix thinks about people, access and data.

- [How AdPix identifies visitors](https://docs.adpix.io/en/concepts/foundations/how-adpix-identifies-visitors/)
- [Organizations, accounts and properties](https://docs.adpix.io/en/concepts/foundations/organization-hierarchy/)
- [Roles and data restrictions](https://docs.adpix.io/en/concepts/governance/roles-and-data-restrictions/)
- [Consent categories](https://docs.adpix.io/en/concepts/governance/consent-categories/)
- [Data retention and deletion](https://docs.adpix.io/en/concepts/governance/data-retention-and-deletion/)

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[Docs](https://docs.adpix.io/en/concepts/) · AdPix