Question: what is the difference between all the coffees?
Answer: Arabica. Arabica is the most popular type of coffee, hands down. ... 
Robusta. While Arabica is the most popular, Robusta is cheaper and stronger. ... 
Black. Black coffee is as simple as it gets with ground coffee beans steeped in hot water, served warm. ... 
Latte. ... 
Cappuccino. ... 
Americano. ... 
Espresso. ... 
Doppio.