Let me start with an illustration about today’s topic: Version control. In the comic you see what happens when your files are not version controlled.
We may keep adding comments and numbers to the file trying to version it that way. But what happens is that we have several files on the computer with different versions. How do we know which file is the current to work on, which file has the comments from the colleague?
It is time to think about using a thing called version control. You may know this from your Word document when you can track changes made within the document. But what about your data itself, your images etc. You may alter them, too and want to keep their different versions.