Web Frameworks are software libraries designed to help you build web applications, services, and resources. Coursera's Web Frameworks catalogue teaches you about various popular frameworks that provide a structured and standardized way to build and deploy web applications on the World Wide Web. You'll learn how to use server-side frameworks like Node.js, Express.js, Django, and Rails, as well as client-side frameworks like Angular, React, and Vue.js. By the end of this, you'll be able to develop dynamic websites, APIs, and data-driven applications, and understand the architectural principles for designing scalable, maintainable, and secure web applications.