A Beer Festival is an organised event during which a variety of beers are available for tasting and purchase. Beer festivals are held in a number of countries. A Beer Exhibition is usually synonymous with a Beer Festival but, whilst a beer festival may involve a limited range of beer styles or manufacturers, with an emphasis on entertainment, use of the term "beer exhibition" places emphasis on sampling or tasting a wide range of beers, usually craft-brewed in a variety of different styles by various brewers. There may be a theme; for instance beers from a particular area, or a particular brewing style such as winter ales. Beerex is a commonly used portmanteau word coined in 1977 as an abbreviated form of Beer Exhibition.