Cognac Glass

The large surface area of the contained liquid helps evaporate it, the narrow top traps the aroma inside the glass, while the rounded bottom allows the glass to be cupped in the hand, thus warming the liquor.

It is mostly used to serve aged brown spirits such as bourbon, brandy, and whisky.
Goes great for craft beer with ABV measure of 8% or higher, such as imperial stout, Baltic porter, barley wine, and double India pale ale.