There are many puns online where not having the Oxford comma (Serial comma) can be interpreted as something other than intended, such as the infamous Sky News notification:
It’s hilarious, I know, but on a more serious note, does the optional serial comma have any effect on readability? Being a Swede, we don’t have that optional rule at all and your Swedish teacher would make you aware of the error and make you correct it. However, when I first found out about it, I thought it increases the readability and leaves out alternative interpretations.
I often find myself stuck with terrible lists, such as a global navigation. You may have Home, Products, Solutions, Services and Support and About Us. Now, do I mean
HomeProductsSolutionsServices and SupportAbout Us
HomeProductsSolutionsServices and Support and About Us
It’s obvious to us what I mean since About Us is a top navigation item of its own, but how about nonprofessionals who are not familiar with the standard patterns of a global navigation? Could they misinterpret what I really mean leaving the optional serial comma out of the question? Does the Oxford Comma increase readability?