Description: The JSP Tag Library is a collection of custom tags that can be used in JSP (JavaServer Pages) to simplify web application development. These tags allow developers to encapsulate complex logic into reusable components, making it easier to create and maintain the user interface. By using tags, the presentation logic can be separated from Java code, promoting a cleaner and more organized design. Tag libraries can include tags for common tasks such as data manipulation, form management, and database interaction, reducing the amount of Java code needed in JSP pages. Additionally, these libraries can be extended and customized, allowing developers to create tags that fit their specific needs. In summary, the JSP Tag Library is a powerful tool that enhances productivity and quality in web application development.