Warner Bros. Entertainment Inc. v. RDR Books Warner Bros. Entertainment Inc. v. RDR Books Warner Bros. Entertainment, Inc. and J. K. Rowling v. RDR Books, 575 F.Supp.2d 513 (SDNY 2008) is a copyright lawsuit brought on 31 October 2007 by the media company Warner Bros. and "Harry Potter" author J. K. Rowling against RDR Books, an independent publishing company based in Muskegon, Michigan. Lawyers for Rowling and Time Warner argued that RDR's attempt to publish for profit a print facsimile of "The Harry Potter Lexicon", a free online guide to the "Harry Potter" fictional universe, constituted an infringement of their copyright and was not protected by the
J. K. Rowling series thus far. The release date was subsequently announced on 10 July 2018, through the Twitter account of Robert Galbraith, to be 18 September 2018. Rowling has said it is unlikely she will write any more books in the "Harry Potter" series. In October 2007 she stated that her future work was unlikely to be in the fantasy genre. On 1 October 2010, in an interview with Oprah Winfrey, Rowling stated a new book on the saga might happen. In 2007, Rowling stated that she planned to write an encyclopaedia of "Harry Potter"s wizarding world consisting of various unpublished material