This introductory ebook provides a solid foundation for building web applications using Node.js for the backend and React for the frontend. It is aimed at beginners and developers who are new to these technologies. It covers the basics of both Node.js and React and covers key concepts, best practices and its use-cases. It includes step-by-step tutorials with practical examples that guide readers through the process of building a basic web application. Topics include setting up a development environment, creating a Node.js server, working with React components, managing state and communicating between the frontend and the backend.