If you’ve been on social media at all and paid attention to grammar arguments, you may have seen a lot of discussion about the Oxford comma and whether writers need to use it.
The Oxford comma—or serial comma—is the comma that appears before the final item in a series, such as:
- The colors of the American flag are red, white, and blue.
- The most popular pizza toppings are pepperoni, mushrooms, and olives.
Some people insist that this final comma is unnecessary and that those sentences are just as intelligible if written:
- The colors of the American flag are red, white and blue.
- The most popular pizza toppings are pepperoni, mushrooms and olives.