# Order Book, Order Types and Order Options The order book as well as the various order types and options available on trade\[XYZ] are provided by Hypercore. You can read more about the operation of the [order book](https://hyperliquid.gitbook.io/hyperliquid-docs/hypercore/order-book) or the [different types and options](https://hyperliquid.gitbook.io/hyperliquid-docs/trading/order-types#order-types) in their documentation. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.trade.xyz/getting-started/order-book-order-types-and-order-options.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.