> For the complete documentation index, see [llms.txt](https://docs.kaio.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaio.xyz/how-kaio-works/smart-contracts/order-books.md).

# Order Books

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[Subscription Book](/how-kaio-works/smart-contracts/order-books/subscription-book.md)
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{% content-ref url="/pages/Pw2kYRURp5L4MJE8MC8s" %}
[Redemption Book](/how-kaio-works/smart-contracts/order-books/redemption-book.md)
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[Fees](/how-kaio-works/smart-contracts/order-books/fees.md)
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