Hi Svetlana,

I personally found Learning Perl 6th Edition to be a fantastic book for learning the rudiments of Perl. I have a heavily highlighted and annotated copy that I keep as a reference when I forget how to do things I haven't done in awhile. I highly recommend it.

I actually just received my copy of Intermediate Perl in the mail yesterday, so I can't comment on that yet, but I'm expecting it to be similarly helpful in establishing a good foundation of other basic things about the Perl language.

UPDATE: Also, don't worry too much about the version difference. I started on version 5.22 even though the book was written under the earlier version, and I didn't run in to any problems. You can probably skip Chapter 15 of Learning Perl that covers Smart Match and Given-When, or at least leave them until you complete the rest of the book. Both of those things are experimental in the current version of Perl so they could change or be taken out completely. That said, I do shamelessly use Smart Match on occasion purely for debugging purposes, but not for "production" code of any kind.