Legal disputes over the Harry Potter series October 2007, Warner Bros. and Rowling sued Michigan-based publishing firm RDR Books to block the publication of a 400-page book version of the Harry Potter Lexicon, an online reference guide to her work. Rowling, who previously had a good relationship with Lexicon owner Steve Vander Ark, reiterated on her website that she plans to write a "Harry Potter" encyclopedia, and that the publication of a similar book before her own would hurt the proceeds of the official encyclopedia, which she plans to give to charity. A judge later barred publication of the book in any form until the case was
Politics of J. K. Rowling Politics of J. K. Rowling British author J. K. Rowling is a noted philanthropist and maintains links on her website promoting Amnesty International, the Multiple sclerosis Society, One Parent Families, and Lumos (formerly the Children's High Level Group), which Rowling co-founded to advocate against the use of cage beds for mentally handicapped children. Rowling says her heroine is muckraker Jessica Mitford, whom Rowling describes as a "self-taught socialist". Rowling acknowledges being left-wing and said "there is a certain amount of political stuff in [Harry Potter]. But I also feel that every reader will bring his own agenda to the book.