# Orderbook and Tick System ## Orderbook Crescent Network introduce the concept of an orderbook for versatility and visibility. For a coin pair, a single orderbook is given. The users can submit both limit and market orders and transparently observe existing limit orders on orderbooks. ![](/files/aQYD21gimmTw49DIVzRA) ## Tick System Crescent Network introduces tick system alongside with enabling order book feature. Tick system allows better data and calculation efficiency, and also orderbook standardization for users who are familiar with traditional orderbook system. The size of tick can be adjusted by a governance proposal. ## Relationship between Liquidity Pool and **Orderbook** Recent enhancements in blockchain technology have allowed developers to build scalable, automated utilities upon trustless infrastructure. One utility class that has evolved significantly is Automated Market Makers (AMM). In Crescent Network, a liquidity pool becomes AMM so that it allow investors without significant capital or financial knowledge to invest in market-making opportunities. The liquidity pool of a coin pair automatically makes orders in the orderbook of the coin pair by CPM (Constant Product Model). ![Relationship between a liquidity pool and orderbook](/files/VlR6vOr6sCLeTN2XeeaE) As illustrated above, LP provides who deposit two different types of coins into the pool while the liquidity in the pool is automatically converted to the orders to be submitted to the orderbook. --- # 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.crescent.network/introduction/crescent-dex-legacy/orderbook-and-tick-system.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.