@table @kbd
@item C-h a @var{topic} @key{RET}
-This searches the built-in short documentation of each command for
-strings which match @var{topic}. @var{topic} can be a regular
-expression (@pxref{Regexps}). Browse the buffer popped up by Emacs, to
-find what you are looking for.
+This searches for commands whose names match @var{topic}. @var{topic}
+is a regular expression (@pxref{Regexps}). Browse the buffer popped up
+by Emacs, to find what you are looking for. @xref{Apropos}.
@item M-x apropos @var{topic} @key{RET}
-This works like @kbd{C-h a}, but it also searches the documentation of
-user options and other variables, in case the feature you are looking
-for is controlled by an option, not a command.
+This works like @kbd{C-h a}, but it also searches for user options and
+other variables, in case the feature you are looking for is controlled
+by an option, not a command. @xref{Apropos}.
+
+@item M-x apropos-documentation @var{topic} @key{RET}
+This searches the @emph{documentation strings} of all variables and
+functions (not their names) for a match for @var{topic}, a regular
+expression. @xref{Apropos}.
@item C-h i emacs @key{RET} i @var{topic} @key{RET}
This looks up @var{topic} in the indices of the Emacs on-line manual.
This brings up the Emacs FAQ, where you can use the usual search
commands (@pxref{Search}) to find the information.
-@item M-x finder-by-keyword
+@item C-h p
Finally, you can try looking up a suitable package using keywords
-pertinent to the feature you need.
+pertinent to the feature you need. @xref{Library Keywords}.
@end table
@menu