This is the first of three volumes from the archives of "The Perl Journal", it contains 71 articles providing a comprehensive tour of how experts implement computer science concepts in the real world, with code walkthroughs, case studies, and explanations of difficult techniques. The book also covers tips for beginners; regular expressions; data structures; networking; databases; software development processes; object-oriented programming; and advanced Perl programming techniques. This volume covers: tips for beginners; regular expressions; data structures; networking databases; software development processes; object-oriented programming; and advanced Perl programming techniques. It also contains articles on object-oriented programming, closures, regular expressions, buffering, parsing, using other languages from Perl, sending and filtering mail programmatically, working with Microsoft Office programs, DNS, the internals of Perl, and over four dozen other topics.