Cider styles vary based on the type of apples used, fermentation methods, and regional traditions. Common styles include dry, sweet, and sparkling ciders. Dry ciders have little to no residual sugar, while sweet ciders retain more sugar for a sweeter taste. Sparkling ciders are carbonated, either naturally through fermentation or artificially added. Additionally, ciders can be categorized by their origin, such as English, French, or American styles. Each region has unique apple varieties and production techniques that influence flavor profiles. For example, French ciders often use specific apple types for a complex taste, while American ciders may incorporate a wider range of fruit flavors.