Learn JWT authentication and authorization in this comprehensive tutorial for Node.js and React. Discover the advantages of using JWT, compare it to session cookies, and implement JWT authentication in a Node.js backend. Explore how to verify JWTs, handle authorization, and implement refresh tokens. Master JWT logout and token invalidation techniques. Dive into React JWT authentication, including sending JWTs to the server and implementing automatic token refresh. Gain hands-on experience through practical examples and source code, equipping you with the skills to build secure, scalable applications using JWT.