First billion-dollar author

J.K. Rowling (UK) is one of only five self-made female billionaires, and the first billion-dollar author. The seven Harry Potter books have sold a total of 400 million copies around the world and are published in 55 languages, including Latin and Ancient Greek.

According to Forbes, Rowling has grossed over $1 billion (£627 million) for her novels and from related earnings.

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