Intermediate Perl is a book about the Perl programming language by Randal L. Schwartz, brian d foy and Tom Phoenix, published in 2006 by O'Reilly Media. It was released as a retitled second edition of Learning Perl Objects, References & Modules (ISBN 0-596-00478-8) by Schwartz and Phoenix, published by O'Reilly Media in 2003 to favorable reviews. A second edition of Intermediate Perl was released in 2012.Intermediate Perl is a follow-up to Learning Perl.