Linux.com: Vim Tips: Moving Around Using Marks and Jumps

“Editing in Vim can be a breeze, if you know how to make use of
its more advanced features. Moving around files can feel like a
slog if you’re stuck with the basic movement keys, but editing is
effortless when you have command of marks and jumps.

“Basically, a mark is a bookmark or placeholder that allows you
to return to a spot in the file where you were editing. This can be
handy when you’re working on longer projects, whether you’re
writing a long paper, making changes to your Apache configuration,
or writing code…”