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diff --git a/lib/integer.pm b/lib/integer.pm
index 74039bb..a88ce6a 100644
--- a/lib/integer.pm
+++ b/lib/integer.pm
@@ -1,5 +1,26 @@
 package integer;
 
+=head1 NAME
+
+integer - Perl pragma to compute arithmetic in integer instead of double
+
+=head1 SYNOPSIS
+
+    use integer;
+    $x = 10/3;
+    # $x is now 3, not 3.33333333333333333
+
+=head1 DESCRIPTION
+
+This tells the compiler that it's okay to use integer operations
+from here to the end of the enclosing BLOCK.  On many machines, 
+this doesn't matter a great deal for most computations, but on those 
+without floating point hardware, it can make a big difference.
+
+See L<perlmod/Pragmatic Modules>.
+
+=cut
+
 sub import {
     $^H |= 1;
 }