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Dana Thomas’ book party at Chateau Marmont

Author Dana Thomas signs a copy of her new book, “Deluxe: How Luxury Lost Its Luster,” Aug. 30 at the Chateau Marmont. (Lawrence K. Ho / LAT)
Susan Casdan, wearing a Cartier necklace and earrings, attended the launch party for Dana Thomas’ new book. (Lawrence K. Ho / LAT)
Author Dominick Dunne was among those at the Chateau Marmont book-launch party Aug. 30. (Lawrence K. Ho / LAT)
Nancy Lesser helped mark the launch of “Deluxe: How Luxury Lost Its Luster.” (Lawrence K. Ho / LAT)
Diana Conway donned an Alegra Hicks design for Dana Thomas’ Los Angeles book signing. (Lawrence K. Ho / LAT)