The page at http://www.gimp.org/windows/ says "It is highly recommended
that you install the help files (GIMP User Manual) that are provided as
a separate package (see above). The documentation is also available
online," but it doesn't provide a link to whatever one needs to download
to obtain the help files or any instructions on how to do so, and the
info at http://www.gimp.org/docs/ isn't helpful either. That second page
does say "GIMP comes with a built-in help system," but this seems to be
inconsident with the need to install help pages.
Where can we download the help pages and how are they installed?
Gimp-user mailing list