Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Perl is an amazingly powerful and succinct language. Although not the most fashionable, Perl is consistent and supported on a vast range of platforms. Perl by Example written by Ellie Quigley and published by Prentice Hall is a comprehensive, example based, and thorough book.
My first impression of Ellie Quigley’s book was one of warm satisfaction that one gets by doing something healthy like running a couple of kilometers or learning new stuff. The book is thick, about 1000 pages in size, but each word counted and had exact purpose. This book constructively builds up your knowledge of the full range of Perl features, from the basics, through the proper use of hashmaps, to making your own objects and modules.
I must admit that although I have programmed a lot in Perl in the past, I still learnt relevant details from reviewing Perl by Example.