+The book <a href="http://www.refactoring.com/"><i>Refactoring</i> by Martin
+Fowler</a> - not particularly about Perl, but still useful.
+<a href="http://pragprog.com/book/tpp/the-pragmatic-programmer"><i>The Pragmatic
+Programmer: From Journeyman to Master</i></a> - also not particularly about
+Perl, and I found it somewhat disappointing, but it is an informative book.
Advice given by people on <a href="$(ROOT)/irc/#freenode">Freenode's #perl
channel</a>, on the Perl Beginners mailing list, and on other Perl forums.