A great tutorial to Emacs editor

That tutorial is available at http://www.gnu.org/software/emacs/tour/ .

I learned some new features, such as `wdired-change-to-wdired-mode' which enables one to change filenames(use C-x C-s or C-c C-c to save, or C-c C-k to abord changes). Also, that tutorial reminds me how to move in units of sentences(`M-a', `M-e', still not used to the former, though); how to stop isearch at the place found(namely, leaving point there) by press the

key.

BTW, I have bound `C-2' to call the command `set-mark-command`, so it unifies the set mark action in both the X system and the console environment: I just have to type `C-2', though in X it's interpreted as Ctrl+2 but in console environment as Ctrl+@.