Ahead of Daphne Guinness' highly anticipated auction at Christie's, Nick Knight chats to the stylish heiress within the exhibition space, amidst a selection from her covetable personal collection that will be on sale on Wednesday 27 June 2012 at 19:00 BST. The sale features couture pieces from Christian Lacroix's first collection in 1987 to Alexander McQueen from early 2000s. All proceeds from this week's auction will go to The Isabella Blow Foundation, a charity set up by Guinness to support aspiring art and fashion students and to facilitate further research into depression and mental health. In the interview, Guinness reveals her relationship to clothes and fashion and her objectives behind the Foundation. Watch the interview here.