One of the best things about Perl and CGI for the World Wide Web is the seamless way the author incorporates terminology into her explanations. Elizabeth Castro, author of HTML 4 for the World Wide Web, understands the intermediate user: someone who would be bored by a beginner's guide, but isn't ready to step up to heavy-hitting programming texts either. / In Perl and CGI, she explains basic concepts--such as the difference between a compiled and an interpreted script--within the text, so there's no need to keep flipping back to the glossary. Readers should be familiar with HTML and comfortable with technical explanations, diagrams, and general vocabulary.