Thirteen issues were published from August 2005 to October 2008.
A trade paperback, Rex Libris: I, Librarian (ISBN 1593620624), was published in 2007. It collects the first five issues of the series, plus an unpublished short story, "Rex versus the Red Baron!" A second trade paperback, Rex Libris: Book of Monsters, was published in 2009. It collects the last eight issues.
The series follows the adventures of Rex Libris, the Head Librarian at the Middleton Public Library. Unbeknownst to the general public, Rex is actually over a thousand years old, and was the original librarian at the Library of Alexandria. He is a member of the Ordo Biblioteca, a secret international society of librarians. With the aid of the ancient god Thoth, who lives beneath the Library, Rex travels to the farthest reaches of the universe to collect late book fees, and to fight the powers of ignorance and darkness.1
In April 2007, Warner Bros. announced that they had hired Mark Burton to write the script for a film adaptation of Rex Libris. The producer of the film is Mosaic Media.2 In 2012, Walden Media acquired the rights and hired Ben Zazove to write the script.3
"Rex Libris cast notes". James Turner website. Archived from the original on 2007-07-09. Retrieved 2007-07-12. https://web.archive.org/web/20070709133728/http://www.jtillustration.com/rex/cast.php ↩
McClintock, Pamela (April 2, 2007). "WB booking a scribe for 'Rex Libris'". Variety. Retrieved 2007-07-12. https://www.variety.com/article/VR1117962384.html?categoryid=13&cs=1 ↩
McNary, Dave (February 23, 2012). "Walden Media makes book on 'Rex Libris'". Variety. Retrieved 2016-05-20. https://variety.com/2012/film/news/walden-media-makes-book-on-rex-libris-1118050673/ ↩