Besides the traditional documentation form for , man pages, also uses the Info system develop by the GNU Project (based on the ITS info system). See Texinfo documentation for more information. The formatted info documents are put into /usr/info (or /usr/emacs/info , or /usr/lib/emacs/info , or /usr/local/emacs/info ; the possibilities are almost endless, but /usr/info is usually either the place itself, or a symlink to the place). The file dir in the info directory is the toplevel, or directory, node and should be edited to contain a link to the new document when one is added to the directory.