What is the “Oxford comma”? If you don’t want to make horrible (!!!) mistakes in your writings, pay attention to this article.
* I love my parents, Lady Gaga and Humpty Dumpty.*
Without the Oxford comma, the sentence above could be interpreted as stating that you love your parents, and your parents are Lady Gaga and Humpty Dumpty. Here’s the same sentence with the Oxford comma:
*I love my parents, Lady Gaga, and Humpty Dumpty.*
Tell me…can you see the difference?
http://http://thewritepractice.com/es/why-you-need-to-be-using-oxford-commas/