So important it gets its own Other page
https://git-scm.com/
https://git-scm.com/book/en/v2
https://jwiegley.github.io/git-from-the-bottom-up/
https://blog.plover.com/prog/git/tips.html
https://happygitwithr.com
https://learngitbranching.js.org/
https://www.atlassian.com/git/tutorials/learn-git-with-bitbucket-cloud
Use commit messages wisely: https://dhwthompson.com/2019/my-favourite-git-commit
https://blog.mocoso.co.uk/talks/2015/01/12/telling-stories-through-your-commits/
https://mislav.net/2014/02/hidden-documentation/
Branching etc.
https://martinfowler.com/articles/branching-patterns.html