Prince Harry’s memoir “Spare” is the fastest-selling non-fiction book ever, Sky News cited the publisher as saying on Tuesday that it has hit the sales mark of 400,000 copies across hardback, ebook and audio formats. Have done
Sky cited Transworld Penguin Random House as saying that the book “exceeded even our wildest expectations,” adding that the only books that sold more on its first day were the Harry Potter novels.
Penguin Random House did not immediately respond to a Reuters request for comment.
