I'm a student who used to work at a level where I would just cycle through git add . -> git commit -> git push only on the main branch without creating separate branches. I knew terms like HEAD, branch, ... but I'm confident that I wouldn't have been able to explain them if asked, as I wasn't familiar with them at all. However, by following geek's learning cycle of theoretical explanation -> visual material explanation -> code practice, I was able to understand and progress smoothly. Among these, merge was a command I had never used before, but thanks to the detailed and repetitive explanations, I grew to the point where I could create various scenarios myself and work through conflict and success situations. Thank you for the excellent lecture, and I'd like to share additional materials I have studied/will study! 1. A site where you can solve git examples. When you input commands to solve problems, it responds with real-time visual animations. Link: https://learngitbranching.js.org/?locale=ko --- 2. An open source that generates visual images or videos before git commands are actually applied to the repository Link: https://news.hada.io/topic?id=8336 --- 3. A blog with image materials about git commands Link: https://marklodato.github.io/visual-git-guide/index-ko.html