Just in case you want more reading, I keep a list of PM nodes related to Perl books:

• Best Perl Books of All Time
• If I could only own one Perl book, it would be:
• (Perl) Programming Books like the Camel Book
• Which Book
• Book question
• So what is your Perl book "Trilogy" anyway?
• Books to master Perl, LAMP and web development
• Network Programming with Perl Book Recommendation
• What book would be valuable to someone self-taught?
• New Beginning Perl book due out in August
• Perl Videos and Book (followed by re-asking in Perl Book OOPS)
• Suggestions for getting a more solid understanding of Perl
• Please guide me regarding good books/resources on data structures and algorithms
• Modern Perl: The Book: The Draft
• Perl Recommended Reads
• Modern Perl

Update: and another on learning and improving at Perl:

• learn.perl.org
• Perl Tutorial Hub
• Perl 101
• perlmaven tutorial
• Getting Started with Perl
• Perl online documentation especially perlintro

• What is the best way to master perl
• Re: Real Life Perl Exercises
• Re: Perl Exercises: For Beginners
• Problems to solve for Perl Beginners
• Small Perl quests for a beginner?
• In need of guidance
• Perl Puzzles
• Additional exercises for "Learning Perl" book?
• Want to be a part of a project
• Forgetting Syntax, Forgetting logic, Heck, Should I even try keep learning Perl??
• Whats the average time taken to learn Perl?
• Seeking guidance on getting better at Perl.
• need help!
• Bling Bling (or: Teaching Perl to Teenagers)
• Learning Fundamentals: Data Structures and Algorithm Analysis in Perl
• Best ways of learning Perl!
• seeking direction to start with perl
• how can I learn well
• Recommended Reading
• How does one learn perl programming efficiently - if they do not come from computer science background?