According to information company called Nielsen Bookscan, overall sales of her book alone stand at more than 600,000 ranking it 11th on the list of bestselling - memoirs and biographies -; since book sales record began in 1998 only.
According to Nielsen BookScan, overall UK sales of her book stand at more than 600,000, ranking it 11th on the list of bestselling memoirs and biographies since sales records began in 1998.