Your niece swears that no one expects thank-you letters any more. your Father-in-law insists that married women have to take their husbands’ names. Your guests plead that asking them to RSVP ruins the spontaneity. Who is right? Miss Manners, of course.

As described by the author, An indispensable manual to navigating life from birth to death without making a false move.

• Miss Manners’ Guide ($23)