efaq: Emacs Lisp documentation

 
 3.4 Where can I get documentation on Emacs Lisp?
 ================================================
 
 Within Emacs, you can type ‘C-h f’ to get the documentation for a
 function, ‘C-h v’ for a variable.
 
    For more information, the Emacs Lisp Reference Manual is available in
 Info format (SeeEmacs Lisp (elisp)Top.).
 
    You can also order a hardcopy of the manual from the FSF, for details
 see the FSF on-line store (http://shop.fsf.org/).  (This manual is not
 always in print.)
 
    An HTML version of the Emacs Lisp Reference Manual is available at
 
    <http://www.gnu.org/software/emacs/elisp-manual/elisp.html>