React Hooks are a powerful feature introduced in React 16.8. They allow you to use state and other React features without writing a class. This means you can use React without classes. The most commonly used hooks are useState and useEffect.

The useState hook allows you to add state to functional components. Here's a simple example:

const [count, setCount] = useState(0);

The useEffect hook lets you perform side effects in function components. It serves the same purpose as componentDidMount, componentDidUpdate, and componentWillUnmount in React classes, but unified into a single API.

useEffect(() => {
  document.title = `You clicked ${count} times`;
});

By using these hooks, you can write more concise and easier-to-understand React code, leading to more maintainable applications.