A page turner... Hugo Vickers' compelling account makes one feel that Wallis did the Queen a favour * Literary Review * With a lifetime's interest in the subject, Vickers knows everything there is to know about the Windsors . . . The first half of Behind Closed Doors, as well as being an accumulation of evidence against Blum, is the story of a personal journey into the world of the Windsors in which Vickers quotes from nearly 40 years of his own diary entries. It is also a hugely entertaining account of the battle between biographers for ownership of their subject . . . The book's second half is a biography of Wallis Simpson, nee Warfield. Vickers delves into her family tree with his accustomed detail and gives a realistic account of the end of her marriage to Ernest Simpson. * Telegraph * A definitively brilliant history of the whole story -- A.N. Wilson * Evening Standard *