Emacs is powerful but complicated. The more you are able to reference its keyboard shortcuts the faster you can work - I find this its greatest strength. If you have already read my article on Emacs for Writers in which I describe how authors can make best use of this powerful software, you may also appreciate this Reference Card (cheat sheet). It provides all the most useful commands in both long and short form, on three concise pages (PDF). Happy writing! Click to download the cheatsheet.