J.K. Rowling announced on her website that she is writing a Harry Potter encyclopedia.
"For a long time I have been promising an encyclopedia of Harry's world, and I have started work on this - some of it forms the new content in Pottermore. It is likely to be a time-consuming job, but when finished I shall donate all royalties to charity," Rowling wrote in the FAQ section of her website.
Last week, Rowling announced details about her new novel, The Casual Vacancy.
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