# DOM Modules ### Description {% code overflow="wrap" fullWidth="true" %} ``` Order Book modules allow you to more deeply evaluate the behavioral nature of order movement and the dynamics of price movement. Each module reflects a certain slice (angle) of data perception. ``` {% endcode %} ### Purpose * The order book modules allow you to assess the movement of orders in the order book. * Provide analysis and prediction of price behavior. * Show strategic price levels. The modules are located next to the order book and display information at each price level. --- # 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://1ex.gitbook.io/1ex-smart-dom/features/dom-modules.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.