Think of Redux as a big grocery "store" for your app. Whenever a component needs some data, you just "connect" it to the store

Far off component(s) needs to know about an update? No problem. The update is sent to the store and any other connected components can see the change and make the necessary changes if needs be

Vocab

• Redux - state management library
• React-Redux - state management library that is React specific
• Store - state tree for entire app
• Reducer - function that takes in state and an action and updates our state
• Action Types - constants that dictate how the state is updated
• Provider - Component that takes in a store prop and allows all children of it to receive access to the state tree
• mapStateToProps - function that does exactly that, takes our state from the store and attaches it to props on the component
• connect - function that connects our component to the state tree