I started learning Perl with the 3rd edition 12 years ago. I have been reading for hours since the new edition arrived. It is nearly an inch thicker than my 3rd edition. I am very pleased how they have adapted to the new features of Perl but kept the Camel Book a pleasure to read. It is like catching up with old friends.
If you are new to Perl, I suggest you start here to understand the WHY then turn to the beginner books for the HOW. If you are an old timer, the 30 bucks will be well spent.
My only complaint is that it is not yet available for Kindle.