best way to study it is to read it in conjunction with poking at Perl
source, and we'll do that later on.
-Gisle Aas's illustrated perlguts (also known as I<illguts>) is wonderful,
-although a little out of date with regard to some size details; the
-various SV structures have since been reworked for smaller memory footprint.
-The fundamentals are right however, and the pictures are very helpful.
+Gisle Aas's "illustrated perlguts", also known as I<illguts>, has very
+helpful pictures:
-L<http://www.perl.org/tpc/1998/Perl_Language_and_Modules/Perl%20Illustrated/>
+L<http://search.cpan.org/dist/illguts/>
=item L<perlxstut> and L<perlxs>