+ If the variable @code{apropos-do-all} is non-@code{nil}, the apropos
+commands always behave as if they had been given a prefix argument.
+
+@vindex apropos-sort-by-scores
+@cindex apropos search results, order by score
+ By default, apropos lists the search results in alphabetical order.
+If the variable @code{apropos-sort-by-scores} is non-@code{nil}, the
+apropos commands try to guess the relevance of each result, and
+display the most relevant ones first.
+
+@vindex apropos-documentation-sort-by-scores
+ By default, apropos lists the search results for
+@code{apropos-documentation} in order of relevance of the match. If
+the variable @code{apropos-documentation-sort-by-scores} is
+@code{nil}, apropos lists the symbols found in alphabetical order.
+
+@node Help Mode
+@section Help Mode Commands
+
+ Help buffers provide the same commands as View mode (@pxref{Misc File
+Ops}), plus a few special commands of their own.
+
+@table @kbd
+@item @key{SPC}
+Scroll forward.
+@item @key{DEL}
+Scroll backward.
+@item @key{RET}
+Follow a cross reference at point.
+@item @key{TAB}
+Move point forward to the next cross reference.
+@item S-@key{TAB}
+Move point back to the previous cross reference.
+@item Mouse-1
+@itemx Mouse-2
+Follow a cross reference that you click on.
+@item C-c C-c
+Show all documentation about the symbol at point.
+@end table
+
+ When a function name (@pxref{M-x,, Running Commands by Name}),
+variable name (@pxref{Variables}), or face name (@pxref{Faces})
+appears in the documentation, it normally appears inside paired
+single-quotes. To view the documentation of that command, variable or
+face, you can click on the name with @kbd{Mouse-1} or @kbd{Mouse-2},
+or move point there and type @key{RET}. Use @kbd{C-c C-b} to retrace
+your steps.
+
+@cindex URL, viewing in help
+@cindex help, viewing web pages
+@cindex viewing web pages in help
+@cindex web pages, viewing in help
+@findex browse-url
+ You can follow cross references to URLs (web pages) also. This uses
+the @code{browse-url} command to view the page in the browser you
+choose. @xref{Browse-URL}.
+
+@kindex @key{TAB} @r{(Help mode)}
+@findex help-next-ref
+@kindex S-@key{TAB} @r{(Help mode)}
+@findex help-previous-ref
+ There are convenient commands to move point to cross references in
+the help text. @key{TAB} (@code{help-next-ref}) moves point down to
+the next cross reference. @kbd{S-@key{TAB}} moves up to the previous
+cross reference (@code{help-previous-ref}).