From early on in this book, you've been using state to control your React components. State is an important concept in any React application because it controls what the user can see and interact with. Without state, you just have a bunch of empty React components.

In this chapter, you'll learn about Flux and how it can serve as the basis of your information architecture. Then, you'll learn how to build an architecture that best serves web and mobile architectures. You'll also be introduced to the Redux library, followed by a discussion on the limitations of React architectures and how you might overcome them.