JK Rowling Harry Potter writer makes 5 pounds per second. JK Rowling is the world's highest-earning author, making more than £5 every second over the past year, US business magazine Forbes has announced.
The Harry Potter writer, who made a total of $300m (£170m) last year, wrote the first of her best-selling books about the boy wizard in 1997.
Her income was six times more than literature's next-biggest earner, James Patterson, of Along Came A Spider fame.
The magazine described her work as "a children's literary sensation".
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