How to check git commit history

Is there a simpler guide than the Pro Git Book? The viewing commit history section is just too long to go through.

I need a guide that helps me move fast and is simple enough to relate at work. Recently, I've trying to find a better way to check historical commits on my repo and this is something everybody in a shared repo can relate to: you need visibility of who changed what and when. Of course, `git diff` will be the right command but we always start with `git log`.

Apparently, we are not stuck with the stock `git log` command. You can customize how your commit history is shown and there are actually several ways you can check git commit history.