This week, Martha turns her attention to the business of beauty in a conversation with industry veteran John Demsey. Demsey, who spent 30 years leading brands at Estée Lauder, developed MAC Cosmetics into a global powerhouse and was the force behind Tom Ford’s expansion into fragrance and cosmetics. He loves the legacy brands, he supports the newcomers, and he understands why we can’t get enough of the products. Listen here as he shares his insights about the multi-billion beauty industry and talks about his book, Behind the Blue Door, about the extraordinary home he created in Manhattan.