Getting Help

C-h t Emacs tutorial
C-h a Apropos (Emacs prompts for keyword or regexp)
C-h i Load info browser
C-h m Display help on current mode
C-h f Display help on function (Emacs prompts for function)
C-h k Display help on key (Emacs prompts for key)
M-x man Display a man page in a new buffer (Emacs prompts for man page)