Hi grammarians! Can someone please tell me the latest rule regarding the use of the last comma in a series? Some of my grammar books say that one must include it in formal writing, while not in informal writing such as journalism; others say that the last comma is needed only if misreading would occur without it, as in We elected our president, vice president, secretary and treasurer. (as though the last two might be one person). I'd appreciate your thoughts on this soon as I'm teaching commas this week. Carole Hamilton [log in to unmask]