This topic is rather for the pro's for us. It is pretty controversial - and it is rather important when you teach. I believe though, that drinks categories are also important, when it comes to understand drinks and drinks culture - and to memorize many drinks - what you categorize you will remember... Let me be frank. Through more than 2 decades I found that below categories make sense. It is not the answer to anything - and I don't claim that. At the end it is a theorem, which depends on your views (but also off priorities and cocktail history). First shocker: cocktails are short drinks! Always. We are not discussing here what average Joe (and Jane) are calling cocktails. This is about people who have an insight into drinks. No Piña Coladas and Mojitos are no cocktails. Neither are frozen drinks. The Cocktail Evolutionary Tree We can further consider categories as an evolutionary tree. There are "living fossils" being still created (and going strong)