Weißbier literaty means white beer in Germany, because it was originally made at a time when the brewing method of regular light-colured lagers now known as Helles, had not yet been invented. All other Munich beers were then dark. Outside of Bavaria a Weißbier often called a Weizenbier (wheat beer) or simply a Weizen. Additionally, there are dark varieties of Weißbier known as Dunkel Weissbier or a Dunkelweizen.
A traditional Weissbier glass holds a half a litre of beer plus extra room for foam. Pouring a Weißbier requires a bit of practice, as otherwise the the foam will likely overflow or be too flat.