My friend told me about the basic of bartending.
He said, as a bartender we should know "5 spirits"
Those are main ingredients in mix drinks.
The formula :
5 spirit + Mixers + Garnishes = mix drinks
Mixers made from carbonate water, like a tonic, juices, or soda.
Then you can add the garnishes, lemon , orange, mint and so on.
The name of the mix drinks sometimes similar in everywhere, universal.
The formula, the way they serve, kind of glasses they use.