Dive into a comprehensive crash course on JWT Authentication with Node and Express, covering essential topics like authentication, authorization, hashing, and JSON Web Tokens. Learn to set up a project, implement signup and login flows, validate user input, hash passwords securely, and create and use JWTs. Explore how to protect routes using middleware and gain hands-on experience through practical examples. Follow along with the provided GitHub repository to reinforce your understanding of these crucial web development concepts.