Mr Kelly points out that apart from a modern intrusion in the form of Harry Potter, the top 10 is dominated by the literary canon in the shape of the Brontes, Orwell and Tolkien.
"The Brontes grew up used to seeing their father's books on the shelves of the parsonage, " says Andrew McCarthy, director of the Bronte Parsonage Museum in the family's former home in Haworth, West Yorkshire.