OVERVIEW
Developed by Facebook engineers, React is a JavaScript library that has revolutionized how developers design and think about views in web applications. It introduced a way for developers to declaratively describe user interfaces, and to model the state of these interfaces instead of the transactions on them. In React.js Succinctly, author Samer Buna introduces the novel approach to building user interfaces that React provides, and walks readers through the basics of declarative user interfaces, React components, working with user input, and more.
https://www.syncfusion.com/succinctly-free-ebooks/reactjs-succinctly