Test reports are crucial for tracking the progress of testing activities, whether manual or automated, and this principle applies to frameworks like NUnit used for automated browser testing in .NET languages. NUnit, a popular test automation framework, can generate valuable reports with third-party tools such as ExtentReports and Allure, which are available through the NuGet gallery for integration with Selenium C#. ExtentReports, in particular, offers a comprehensive reporting library that includes features like HTML report generation, support for BDD/Gherkin, and the ability to add screenshots in base64 format. Version 4 of ExtentReports introduces enhancements such as more reporter options and the ability to set Gherkin dialects. The guide details how to set up ExtentReports with NUnit, emphasizing the creation of HTML reports, capturing screenshots, and logging test results. This approach aids in visualizing test execution across different browsers and operating systems, ultimately contributing to more effective test management and communication.