Get Grammar Girl's take on the serial comma. Learn whether putting an oxford comma before the last and in a list is proper punctuation.
The imporance of oxford commas: Among those interviewed were his two ex-wives, Kris Kristofferson and Robert Duvall.
The Oxford comma is the comma that precedes the conjunction before the last item in a list of three or more items.
Mary Norris takes on a grammar rule that has become the subject of passionate debate among scholars, journalists, and copy editors. Long live the Oxford comma!
Syntactical Fission: Splitting the Infinitive
The serial comma is a comma that precedes the conjunction before the final item in a series.