When and connects two independent clauses, you should use a comma. In a list of three (or more), the use of a comma before and is optional.
There are a few comma guidelines to keep in mind while writing. This blog post will discuss commas and the conjunction “and.”
An Easy Guide to Using a Comma Before And – INK Blog
Comma Before So When to Use a Comma Before So • 7ESL
How to Use Commas with Names and Titles Correctly
Using Commas in Lists
Comma (,) When to Use a Comma with Important Comma Rules • 7ESL
A Comma Before or After So? All You Need to Know
Using Commas with Direct Address, English
How to Avoid Passive-Aggressive Communication
Comma Before As: The Punctuation Rule You Never Knew You Needed - ESLBUZZ
COMMA
Comma Before Such As, When To Use A Comma Before Such As • 7ESL
When to Use a Comma Before or After But?
Does the Comma Go Before or After Quotation Marks?
