This introduction explains the concept of version control, specifically focusing on Git, a popular tool developers use. Git keeps a history of changes made to your project's files, allowing you to see exactly what modifications were done and by whom. This makes it easy to revert back to a previous version if something goes wrong. But Git's usefulness extends beyond personal projects. It facilitates collaboration by enabling multiple people to work on the same project simultaneously. Finally, the introduction explores GitHub, a widely used online platform that acts as a central hub for storing and managing Git repositories.