There are several specific glasses named after the beverages for which they were designed. This, my favorite of all glasses, is a martini glass.
It is called a martini glass because it was designed for martinis. Notice the stem? That is to hold the martini glass so the heat of your hand does not warm the contents of the glass. Martinis are never served with ice cubes in the glass. Even the shape of the glass is proportionate to the suggested volume of martini to be consumed. Quite simply, the shape and function of this glass is pure brilliance. Please - I beg of you, do not serve any other beverage but a martini in a martini glass, or your left ear will rot and fall off.
This, my 2nd favorite glass, is the pilsner. Pilsners are designed for beer. Notice the tall, tapered shape? Again, it is proportionate to the typical amount of beer poured from a can or bottle. Please - do not serve any other beverage but beer in a pilsner glass, or you will surely bounce a check within 48 hours.
This is a wine glass, possibly the most frequently misused glass. Whether long-stemmed or short-stemmed, wine glasses should never contain any other beverage but wine, and especially not champagne. Champagne has its own glass; keep reading. This is a brandy snifter. Yes, there is a 't' in the word snifter. Again, the shape of this glass is ideal for brandy, as it suggests wrapping your hand around its bowl, allowing the heat of your hand to lightly warm the brandy for maximum bouquet and flavor. Unlike the glasses above, its size is not proportionate to the volume of brandy it can hold. Never, ever fill a brandy snifter to the top. But rather, only about 1/4 of the glass should be filled, allowing the drinker to swirl the brandy without spilling it. If any other beverage is served in a brandy snifter you will immediately become uglier than you used to be.