emacs Getting started with emacs Interactive Emacs Tutorial
Example
From within Emacs, type C-h t (Control-h, t) to get an excellent interactive tutorial within Emacs. The user learns basic navigation and editing by operating on the TUTORIAL text itself, as they read the tutorial. (Modifications to the tutorial are discarded when the tutorial is closed, so each time a user requests the tutorial, it's a clean default version of the tutorial.
Helpfully, the first thing in the tutorial is how to understand C-<chr> and M-<chr> references in the text. The second thing is how to page forward and backwards in the text.
