Existing books on debugging ?

There was a recent thread about testing books on the perl-qa list.

http://lists.cpan.org/showlist.cgi?name=perl-qa

(which is not in the archive for some reason but you can see it in the
news feed)

http://nntp.x.perl.org/group/perl.qa/2073

I'd be glad to hear your opinion about similar books on debugging.

Of course we can all point at "Perl Debugged" but I don't know
any other book talking about debugging.

What books out there are of use for those wanting to learn debugging?
They don't necessarily have to be specificly about *Perl*.
Is there a way to learn debugging other than learning the capabilities
of a debugger ?


Gabor