She started her career as an international flight attendant for Pan American World Airways.
Today Peggy is author of more than twelve books including the 17th edition of Emily Post’s Etiquette, all published by HarperCollins.
She writes columns for such magazines as Good Housekeeping, Parents, and USA Weekend.
Post's latest edition of Emily Post’s Etiquette includes not only an Attire Guide Beach Casual to White Tie but sections on appropriate e-mail manners, how to graciously discuss a potential sex partner's past and the circumstances under which one can re-gift in good conscience.
In an interview she stated that she found out that discussions about people perceived as rude or uncivil leads to a search for a sense of order.