Cara Delevingne signs copies of her new book 'Mirror, Mirror' at Waterstones Piccadilly on October 4, 2017 in London, England.
{"Image ImageDescription": "LONDON, ENGLAND - OCTOBER 04:  Cara Delevingne signs copies of her new book \"Mirror, Mirror\" at Waterstones Piccadilly on October 4, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images)", "Image Copyright": "2017 David M. Benett"}