Do you know why the comma is so powerful? It makes your words readable. With out it you wouldn’t know when to pause and when to take a breath.
Simply: A comma is a punctuation mark that reads like a pause when speaking.
However, the use of the comma isn’t 100% black and white. There are times when it is 100% necessary and other times when it is a matter of taste and style.
For example, an introductory phrase is a matter of preference:
On October 31st I wore a Halloween costume.
On October 31st, I wore a Halloween costume.
The rest of the time, around 70%, you need to know when and where to use it.…