perltie Perl objects hidden behind simple variables
perlbot Perl OO tricks and examples
perlipc Perl interprocess communication
+ perlfork Perl fork() information
perlthrtut Perl threads tutorial
perldbmfilter Perl DBM Filters
perlcall Perl calling conventions from C
perltodo Perl things to do
+ perlhack Perl hackers guide
perlhist Perl history records
(If you're intending to read these straight through for the first time,