The Oxford comma, or serial comma, is a standard convention in many publishing houses—but almost no newspapers. The serial comma is the final comma before the conjunction in a list:

Angela bought eggs, milk, and butter.

Some serial comma enthusiasts say that serial commas are required, and that the recent tendency away from serial commas is yet another sign of the deteriorating state of English literacy, blah blah blah. But the most common argument in favor of the serial comma is that it just takes care of so much ambiguity, such as in this famous example:

I’d like to thank my parents, Ayn Rand and God.

And yes, it’s true that if this person had used the serial comma, it would be clear that they didn’t use “Ayn Rand and God” to mean “my parents” (hello, apposition!). But let’s be honest—you knew what this person meant, didn’t you?

It’s just simply not the case that the serial comma always clears up ambiguity. How many people are in this list?

I’d like to thank my father, the man who saw me through so many hard times, and my mother.

Is “the man who saw me through so many hard times” the same person as “my father”? (That sneaky appositive again!)

And then there are even times when the serial comma can’t fix the ambiguity:

I’d like to thank Angela, my editor, and my wife.

I’d like to thank Angela, my editor and my wife.

So is Angela his editor, his editor and his wife, or neither?

What to do:
Use the serial comma—or don’t—as you’re used to (or according to your publisher’s style guide). Add it or remove it if there’s any ambiguity. And if that doesn’t work, reword. (I’d like to thank my wife, Angela, who edits my work.) Just don’t claim that one way is always right—because it’s not.

Do you use the serial comma?

Photos by Xavi Blanch and Leo Reynolds