I’ve yet to find a good intro doc that explains how git works conceptually. There are too few visual examples with authors assuming that users already understand the basic concepts like commits. To people who are completely new to version control, git can appear nonsensical.

Funnily enough I think Atlassian/Bitbucket comes close to a good intro doc to git on their site complete with a visual guide. I still found it inaccessible to people totally new to the basic concepts though.