I recently picked up a copy of "Practical Vim" https://pragprog.com/titles/dnvim2/practical-vim-second-edit... based on a recommendation from a comment on HN. The first chapter mentions the built-in `vimtutor`

I never it existed! It was incredibly helpful with some features I'd never used such as Put, Replace and Visual mode. If you have vim, you should just be able to run `vimtutor` in the command line. If you have trouble, you can run `:help vimtutor` within vim.