> For the complete documentation index, see [llms.txt](https://docs.merlinchain.io/merlin-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.merlinchain.io/merlin-docs/user-quick-start/important-concepts.md).

# Important Concepts

This section contains important concepts related to Merlin Chain that users, especially beginners, need to understand.

<table><thead><tr><th width="143">Concepts</th><th>Resource</th></tr></thead><tbody><tr><td>BTC Layer2</td><td><a data-mention href="/merlin-docs/user-quick-start/important-concepts/btc-layer2.md">BTC Layer2</a></td></tr><tr><td>UTXO</td><td><a data-mention href="/merlin-docs/user-quick-start/important-concepts/utxo.md">UTXO</a></td></tr><tr><td>M-Point</td><td><a data-mention href="/merlin-docs/user-quick-start/how-to/staking-and-unstaking/staking-merlins-seal-already-concluded/m-points-rewards-and-team-rules.md">M-Points Rewards and Team Rules</a></td></tr><tr><td>AA Wallet</td><td><a data-mention href="/merlin-docs/user-quick-start/important-concepts/aa-wallet.md">AA Wallet</a></td></tr><tr><td>M-Token</td><td><a data-mention href="/merlin-docs/user-quick-start/how-to/m-token.md">M-Token</a></td></tr><tr><td>Merlin_BTC</td><td><a data-mention href="/merlin-docs/user-quick-start/important-concepts/merlin_btc.md">Merlin_BTC</a></td></tr><tr><td>MERL</td><td><a href="/merlin-docs/about-merlin/tokenomics.md">Tokenomics</a> and <a href="/merlin-docs/user-quick-start/how-to/merl.md">Related Operations</a></td></tr></tbody></table>