Gin is a spirit that has been around since the middle ages. It's flavor usually comes from juniper berries. It comes in five categories: London Dry, Plymouth, Genever or Dutch, Old Tom, and New American or International Style.
London Dry is what most people think of when they think of Gin.
Plymouth is less dry that London Dry and is typically made in Plymouth, England.
Genever or Dutch style is darker in color and actually is more similar to a botanical whiskey.
Old Tom is sweeter than London Dry and is the preferred Gin in a Tom Collins.
New American or International style is basically any botanical liquor that follows the same distilling process as the other types of Gin.
St. George Dry Rye Gin
Genever style gin with a great taste. Labeled the whiskey drinker's Gin.
New International style of gin. In addition to juniper, Hendricks uses Bulgarian Rose and cucumber for the flavor.