While coffee drinks have enormous variety, there are only four core varieties of the bean itself. These are the ones to know ...

Of the 130-plus types of coffee beans out there, only four are commonly used or commercially grown, and between those four, two dominate production.

A steaming cup of joe is an essential ingredient for getting my morning off to a great start. It's likely a part of your everyday routine, too. In fact, 3 in 4 Americans consume coffee on the daily.