'A riot' The Times'Absolutely irresistible' Joanna Lumley'Entertaining and energetic' Stylist'I couldn't put it down!' Michelle OgundehinI Shop, Therefore I Am is the story of how Mary Portas transformed Harvey Nichols from a dying department store to an era-defining fashion destination.With her trademark wit and candour, Mary takes us behind the shop window - to the heady glamour and excess of the nineties, to the risks she took and the stunts she pulled, to the people who kept the show on the road and the tough lessons that have shaped her career. It is a story of grit, resilience and vision against all odds.