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In page Esperanto culture:

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The first Harry Potter book, for example, was translated and the translator enquired about how to purchase translating rights so the book could be published, but J.K. Rowling refused to allow it to be published in Esperanto[citation needed] (despite Harry Potter and the Philosopher's Stone being one of the most-translated books in the whole world). In lieu of physical books, the translation now exists as a free download on the internet.[1]