Etiquette in Society, in Business, in Politics, and at Home by Emily Post, first published in 1922, is a comprehensive guide to proper behavior in various social and professional settings. Covering everything from table manners and conversation etiquette to wedding planning and business conduct, Post’s book provides practical advice on how to navigate social interactions with grace, respect, and consideration for others. Written with a mix of authority and humor, Etiquette reflects the social customs of the early 20th century while emphasizing timeless principles like kindness, courtesy, and adaptability. The book became a defining resource for American etiquette and has been updated through the years to remain relevant. Emily Post’s influence endures, as many of her core principles—such as treating others with respect and making people feel comfortable—are still valued today. Etiquette is often referred to as Emily Post’s Blue Book of Social Usage or simply The Blue Book. This nickname comes from the fact that many editions of the book were published with a blue cover. Over time, “The Blue Book” became synonymous with Post’s authoritative guide on etiquette, as it was regularly updated to reflect changing social norms.