Since no one else actually talked about a book ... I'd recommend the O'Reilly "mouse book" - CGI Programming with Perl, 2nd Edition. I own a copy and it's very good. Typical of O'Reilly, it's dense and complete, with good examples. It's not "Perl CGI Sessions for Dummies," but it was my first CGI book, and I've done well with it.
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man with no legs, inc.