The official Redux Fundamentals tutorial: learn how reducers update state in response to actions| redux.js.org
Definitive answers and clarification on the purpose and use cases for Context and Redux| Mark's Dev Blog
The official Redux Essentials tutorial: learn how async logic works in Redux apps| redux.js.org
The official Redux Fundamentals tutorial: learn how to use async logic with Redux| redux.js.org
The official Redux Fundamentals tutorial: learn how to use Redux with React| redux.js.org
History and Design > Middleware: How middleware enable adding additional capabilities to the Redux store| redux.js.org