Can you explain the use of the Oxford comma to me?
user
A small number of people have long had a strong preference for including a comma after the word “and” in some situations, but this usage has never been established as the standard in any English-speaking country, and it is typically considered a stylistic choice.  So some people believe it’s reasonable, and others think it’s wrong.  Here are two examples from the Chicago Manual of Style, with their different approaches:

“In 1984, the Giants beat the Padres for the pennant; and the A’s edged the Blue Jays in the American League Championship Series.” (For preference)

“In 1984, the Giants beat the Padres for the pennant; the A’s edged the Blue Jays in the American League Championship Series.” (Against preference)
assistant
Could you use several of them if you are listing people or events?
user
No, there are circumstances where a comma can be a big help, but only a few.
assistant
How does an Oxford comma differ from a normal comma?
user
By convention, the comma before the “and” in a list is the Oxford comma, and the regular comma is normal.
assistant
Can you explain the use of the Oxford comma to me?
user
A small number of people have long had a strong preference for including a comma after the word “and” in some situations, but this usage has never been established as the standard in any English-speaking country, and it is typically considered a stylistic choice.  So some people believe it’s reasonable, and others think it’s wrong.  Here are two examples from the Chicago Manual of Style, with their different approaches:

“In 1984, the Giants beat the Padres for the pennant; and the A’s edged the Blue Jays in the American League Championship Series.” (For preference)

“In 1984, the Giants beat the Padres for the pennant; the A’s edged the Blue Jays in the American League Championship Series.” (Against preference)
assistant
Could you use several of them if you are listing people or events?
user
No, there are circumstances where a comma can be a big help, but only a few.
assistant
How does an Oxford comma differ from a normal comma?
user
The punctuation mark is the same, and the effect is the same, but the context is different.
assistant
Can you explain the use of the Oxford comma to me?