# Three Layers

- [Consensus Layer](/cardano/how-does-cardano-work/table-of-contents/three-layers/consensus-layer.md)
- [Proof of Stake (PoS)](/cardano/how-does-cardano-work/table-of-contents/three-layers/consensus-layer/proof-of-stake-pos.md)
- [Pros and Cons of PoS](/cardano/how-does-cardano-work/table-of-contents/three-layers/consensus-layer/pros-and-cons-of-pos.md)
- [Ledger Layer](/cardano/how-does-cardano-work/table-of-contents/three-layers/ledger-layer.md)
- [Network Layer](/cardano/how-does-cardano-work/table-of-contents/three-layers/network-layer.md)