early in my career, those two books were on my desk continuously: https://www.amazon.com/Network-Programming-Perl-Lincoln-Stei... (https://www.amazon.com/Network-Programming-Perl-Lincoln-Stein/dp/0201615711/) https://www.amazon.com/Mastering-Algorithms-Perl-Practical-P... (https://www.amazon.com/Mastering-Algorithms-Perl-Practical-Programming/dp/1565923987/) later, it was time for https://www.amazon.com/How-Win-Friends-Influence-People/dp/0... (https://www.amazon.com/How-Win-Friends-Influence-People/dp/0671027034)
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