kid51 writes "Inside-out objects have drawn increasing attention in recent years, particularly since Damian Conway wrote about them in Perl Best Practices. Their pros and cons have been extensively discussed in recent Perlmonks threads. Perl Seminar NY, New York City's monthly Perl user group, is pleased to announce that Perlmonk contributor xdg -- known in what is alleged to be real life as David A Golden -- will be speaking on Inside-Out Objects at our Tuesday, December 20 meeting. Details: Perl Seminar NY. Tuesday, December 20, 6:15-8:15 pm. NYPC User Group Office Suite. 481 8 Ave (Ramada New Yorker Hotel building), btw West 34 & 35 Sts, Manhattan. Room 550."