Version 4.0 of O'Reilly's ""The Perl CD Bookshelf gives programmers convenient online access to their favorite Perl books, all from their CD-ROM drive. We've updated this best-selling product with electronic versions of six popular books. Included are the second editions of ""Perl in a Nutshell, and ""Mastering Regular Expressions; the third editions of ""Learning Perl and ""Programming Perl; and two new titles: ""Learning Perl Objects, References, and Modules, and the long-awaited second edition of ""Perl Cookbook. A paperback version of ""Perl in a Nutshell rounds out this incredible package. It also includes valuable content straight from the O'Reilly Network. Formatted in HTML, ""The Perl CD Bookshelf, Version 4.0, can be accessed with any web browser.

In addition to individual indexes for each book, there is a master index for the entire library. With this CD Bookshelf, programmers get a complete Perl library they can easily carry anywhere.