I second this. I learn much better by example than straightforward lecturing. The Perl Cookbook is nothing but examples; ISBN 9780596003135. Most of the code is dated but all of it is instructive and if you understand it, it’s easy to make the leap to the modules and practices that have replaced much of it. Replacements that were not out of necessity but usually, in my view, toward elegance, terseness, reusability, and clarity.