Edited sentence: Also, some former fans of the series have stated that it was the subject matter within the series, particularly Eldest, to be the reason they lost interest.Although sales of Paolini's books have exceeded 8 million copies, critics claim that this is only due to his well-marketed youth.Examples are Paolini's blatant and "out of place" inclusion of atheist, feminist, and vegan ideology.They claim much of his writing to be mediocre, as well as nearly plagiarizing the works of Tolkien, George Lucas, along with others