How can JavaScript code be organized and structured better in an HTML document for improved readability and maintainability?

To improve the organization and structure of JavaScript code in an HTML document for better readability and maintainability, it is recommended to separate the JavaScript code into external files and include them using the `<script>` tag. This helps in keeping the HTML markup clean and makes it easier to manage and update the JavaScript code separately. ```html <!DOCTYPE html> <html> <head> <title>Organized JavaScript</title> </head> <body> <!-- HTML content goes here --> <script src="script.js"></script> </body> </html> ```