Forever Knight: A Reference Guide is a book written by Gwenn Musicante about the television series, Forever Knight. It was self-published in 2003 with the permission of the publishing division of Sony/Tristar. It should be noted that, when referenced on other FK fans' websites or on the ForKNI-L mailing list, Forever Knight: A Reference Guide is always referred to as a "book", not a "fanzine" or "zine".