# IPFS Concepts

- [What is IPFS?](/ipfs-concepts/what-is-ipfs.md): Learn more about IPFS, the peer-to-peer distributed file system
- [What is an IPFS CID?](/ipfs-concepts/what-is-an-ipfs-cid.md): Learn about IPFS content identifiers (CIDs).
- [What is IPFS Pinning?](/ipfs-concepts/what-is-ipfs-pinning.md): Learn more about IPFS pinning and how to pin data to IPFS
- [What is an IPFS Gateway?](/ipfs-concepts/what-is-an-ipfs-gateway.md)