Please read these and respond.
http://faculty.washington.edu/heagerty/Courses/b572/public/StrunkWhite.pdf
https://www.nytimes.com/2017/03/16/us/oxford-comma-lawsuit.html
https://thewritelife.com/is-the-oxford-comma-necessary/
Responses can be whatever is on your mind at the time that relates to the pieces or the writing process. Again, no summaries.