References, HEAD & the Commit Graph — Roadmap Step & Resources
How branches and tags are just pointers, and what HEAD actually points to
- Level: advanced
- Estimated time: 1 days
- Roadmap: Git & GitHub Fundamentals
Before this step
Interview questions
- What does it mean to be in a 'detached HEAD' state, and how do you get out of it safely?
Study resources
- Git References (Article) — The Pro Git book's chapter on how branches and tags are implemented as references.
- Git HEAD and References Explained (Video) — Covers what HEAD points to and detached HEAD state.
Part of
- Git Internals — section
- Git & GitHub Fundamentals roadmap — the full learning path