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 working as a researcher and bilingual secretary for Amnesty International when she conceived the idea for the "Harry Potter" series while on a delayed train from Manchester to London in 1990. The seven-year period that followed saw the death of her mother, birth of her first child, divorce from her first husband and relative poverty until the first novel in the series, "Harry Potter and the Philosopher's Stone", was published in 1997. There were six sequels, of which the last, "Harry Potter and the Deathly Hallows", was released in 2007. Since then, Rowling has written five books for adult readers: