The Harry Potter Lexicon and was accepted by author J. K. Rowling as conforming to her works. The Lexicon is a winner of J. K. Rowling's Fan Site Award. Rowling said: On October 31, 2007, J.K. Rowling and Warner Brothers filed a lawsuit against RDR Books over the publication of Vander Ark's Lexicon in book form. The lawsuit was heard in a New York court on April 14, 2008. Whilst some sources refer to Vander Ark being sued, the lawsuit actually names only RDR Books. The lawsuit states, The result of the lawsuit was that the book could be published, but not in its
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Rowling stated that she planned to write an encyclopaedia of "Harry Potter"s wizarding world consisting of various unpublished material