React is a JavaScript library for building websites. Created by Facebook, used by millions of developers worldwide.

## Why Use React?

- **Fast** - Updates only what changes
- **Easy** - Break projects into small pieces
- **Popular** - Facebook, Instagram, Netflix use it
- **Jobs** - High demand for React developers

## Simple Example

```javascript
function Welcome() {
  return <h1>Hello, World!</h1>;
}
```

## What You Need First

- HTML basics (tags, elements)
- CSS basics (styling)
- JavaScript basics (variables, functions)

## How It Works

**Regular JavaScript:** Changes whole page (slow)

**React:** Changes only what's needed (fast)

> Next: Install React and create your first app!

Learn what React is and why developers love using it to build modern websites.

React Introduction

Master React development with hooks, state management, and modern patterns.

React Introduction

Why Use React?

Simple Example

What You Need First

How It Works

More on React

React Get Started

React JSX

React Components - Building Blocks of Your App