+@subsection Include ordering
+
+When writing a gnulib module, or even in general, a good way to order
+the @samp{#include} directives is the following.
+
+@itemize
+@item First comes the #include "..." specifying the module being implemented.
+@item Then come all the #include <...> of system or system-replacement headers,
+in arbitrary order.
+@item Then come all the #include "..." of gnulib and private headers, in
+arbitrary order.
+@end itemize
+