-it what man pages go in your packages, and it figures out where to
-install them based on the section field in their .TH line and their filename
-extension. It also supports translated man pages, by looking for extensions
-like .ll.8 and .ll_LL.8
-
-If dh_installman seems to install a man page into the wrong section or with
+it what man pages go in your packages, and it figures out where to install
+them based on the section field in their B<.TH> or B<.Dt> line. If you have
+a properly formatted B<.TH> or B<.Dt> line, your man page will be installed
+into the right directory, with the right name (this includes proper handling
+of pages with a subsection, like B<3perl>, which are placed in F<man3>, and
+given an extension of F<.3perl>). If your B<.TH> or B<.Dt> line is incorrect
+or missing, the program may guess wrong based on the file extension.
+
+It also supports translated man pages, by looking for extensions
+like F<.ll.8> and F<.ll_LL.8>, or by use of the B<--language> switch.
+
+If B<dh_installman> seems to install a man page into the wrong section or with