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

# Concepts

* [Concentrated Liquidity AMMs and Orderbooks](/duality-documentation/concepts/amms-and-orderbooks.md)
* [Liquidity Pools](/duality-documentation/concepts/liquidity-pools.md)
* [Fees](/duality-documentation/concepts/tickliquidity/pool-reserves/fees.md)
* [Ticks](/duality-documentation/concepts/ticks.md)
* [Swaps](/duality-documentation/concepts/swaps.md)