Princess Marie-Chantal's must-have parenting resource for the modern age, now fully revised and updated "Marie-Chantal, Crown Princess of Greece, knows a thing or two about manners. (Queen Elizabeth II was a guest at her wedding.) But when it came to writing Manners Begin at Breakfast: Modern Etiquette for Families, she leaned on her experiences as a New Yorker, sister, daughter, mother of five, and founder of an incredibly...