Git

Git is a version control system that tracks changes in code and files, making it essential for anyone working in tech. Think of it as a detailed history book for projects – it saves every change, lets teams collaborate without overwriting each other's work, and allows developers to experiment safely. For career changers, Git skills open doors to software development, data science, and project management roles. You'll find it used everywhere from startups to Fortune 500 companies, making it one of the most valuable technical skills to master.